Quick Search: Hit CONTROL-F to search THIS page with your browser!

PMTs/Phototubes PMTs / Photomultipliers, Photodiodes, Photocells and PhototubesPMTs/Phototubes
Welcome To Sphere Research's Canadian Test Equipment & Parts Site!
Oh, Canada.... This Section Updated Weekly
Click REFRESH on your browser if pages seem unchanged

Visit the Document Server!Visit our amazing document server.
Everything from Quotes and SciFi to Ethics & Business.
EMAIL US!Want something? Click here to e-mail us!
Go to Our FAQOur FAQ !! Answers to all those tricky questions...
LinksVery Useful Engineering Links Color codes to datasheets...
Sphere Research Coporation, CLICK to visit! Sphere Research Corporation
3394 Sunnyside Rd.
West Kelowna, BC, Canada V1Z 2V4
Phone: +1 (250) 769-1834
FAX:+1 (250) 769-4106

A great source for test equipment, repairs, calibrations, useful metrology information, and of course, SLIDE RULES!

Just SCROLL DOWN to see everything!
CLICK to see Parts By the FootCLICKCLICK to SEE!
 Parts by the Foot!
Now OPEN, our PRODUCTION PARTS WAREHOUSE
Literally millions of parts available at great prices!
CLICK to visit the parts warehouse! CLICKCLICK HERE
CLICKTo Visit The Parts Section
   I'm in a HURRY! Show me all the: CLICKOscilloscopes CLICKMeters CLICKPower Supplies CLICKCounters
R1307-10

Hamamatsu 935 phototubes
Test Equipment Navigation
ReturnReturn to the Test Equipment Home PageHome
Go to the Sphere FAQ Go to Sphere's FAQ Page
TEKTRONIX
Used Tektronix
Equipment

Go to the Tek EquipmentEquipment
Go to the Tek Cross-reference DataCross-Ref Data
Go to the Tek CRT DataCRTs & Data
Go to the Tek PartsParts
Hewlett-Packard
Used HP
Equipment

Go to the HP EquipmentEquipment
Go to the HP Cross-reference DataCross-Ref Data
Go to the HP CRT DataCRTs & Data
Go to the HP PartsParts
PHILIPSFLUKE
Used Fluke + Philips
Equipment

Go to the Fluke EquipmentEquipment
Go to the Fluke PartsParts
Go to the Fluke/Philips CRT DataCRTs & Data
GENRAD
Used General Radio
(Genrad) Equipment
Go to Microwave Power MetersPower Meters
Go to Microwave Power MetersScalar Analyzers
Go to RF SemiconductorsRF Semiconductors
CLICK to see Generators!
Go to GeneratorsRF/Function
Generators
CLICK to see Power Supply Parts
Power Supply Parts
NEW STUFF, CLICK to see!NEW STUFF, CLICK to see!NEW STUFF, CLICK to see!
Go to the NEW STUFF!Lots of NEW Arrivals!
Go to the HOT Deals!Go to the HOT Deals!Go to the HOT Deals!
Go to the NEW STUFF!Assorted HOT Deals!
Capacitors, CLICK to SEE!
Go to CapacitorsCapacitors

CLICK to see Inductive parts!
Go to InductorsInductive Parts
Power Resistors, CLICK to See!
Go to Power ResistorsPower Resistors

Connectors, CLICK to see!
Go to ConnectorsConnectors
FANS, CLICK to see!
Go to FansFans
CLICK to see the Test CablesLeads
& Cables



Go to ToolsProduction Tools
Go to Service ManualsService Manuals
Go to ToolsData Books
*Optics*
Optical Equipment

CLICK to see the Meggers
Go to MeggersMeggers
CLICK to go to the Power Supplies
Go to Power SuppliesPower Supplies
CLICK to go to the RF/Microwave Parts
Go to the RF/Microwave PartsRF/Microwave Parts
TUBETUBETUBETUBETUBETUBE
Go to Vacuum TubesVacuum Tubes
Meters, CLICK to see!Meters
CLICK to go to the Nixie Tubes
Go to the Nixie TubesNixie Tubes

Go to the NumitronsNumitrons/VFD/LCD
CLICK to go to the CRT's

Go to the Cathode Ray Tubes (CRT's)Standard CRT's

Go to the Cathode Ray Tubes (CRT's)Euro CRT's
Go to the Tek Cathode Ray Tubes (CRT's)Tektronix CRT's
Go to the -hp- Cathode Ray Tubes (CRT's)- hp - CRT's
Visit classic old gear from Long Ago!
Visit the SemiconductorsVisit Standards
Go to LoadsVisit the Telecom Section
SLIDE RULESGo to the Slide RulesSlide Rules !
return home
Go to the Sphere FAQ Go to Sphere's FAQ Page

PMTs / Photomultiplier Tubes, Photocells,
Photodiodes,& Photo VacuumTubes

go right to the catalog! Skip the INTRO, Go RIGHT to the TUBE CATALOG!



* NAVIGATION: To make your life easier, and help you find exactly what you want, we have broken the on-line equipment catalogs into smaller sections. Just CLICK on the item you are looking for at the left, to see the matching catalog. Large graphical catalogs are a bit SLOW, so please give them a bit of time to load. The top header of each catalog is largely the same, so don't think you are stuck in one place!

You can order anything here just by picking up the phone, and calling (250) 769-1834 during normal office hours, 8:30AM to 4:30PM PST, or FAX to (250) 769-4106. OR, Email your order to Susan CLICKHERE.

Shipping*SHIPPING: Preferred and Alternate Methods as of June 4, 2013, CLICK for FULL DETAILS ON OUR FAQ Page. Rates are now changing rapidy, often with little notice to us, so all the data has been transferred to the FAQ page for speedy updating.

* E-Mail Susan if you want a quote for shipping to other destinations, or for something heavy. Sorry, we can't safely send most individual small parts in a regular letter envelope, they get destroyed by the automated handling equipment. Sometimes we can ship very rugged parts in a small padded envelope by letter post. Ask Susan.

*There is a packing charge for large or heavy equipment, see the FAQ for details.

*If we have your valid data on file, you can just click on the ORDER email link to place an order and indicate your approval to bill, and we will do the rest. We keep your active information for ONE YEAR for your convenience.

*If this is the first time you have dealt with us, you can phone +1 (250) 769-1834 or FAX +1 (250) 769-4106 to supply the billing info, or send it by the email link, as you prefer. We accept VISA/MC, international money order, Paypal (to Susan@Okanagan.net), and bank wire transfer. Please note that there are transaction fees with Paypal and wire transfer payments, the wire transfer fee is frankly horrifying, $50.

We accept VISA/MC or international money order

* CONDITION: We have both new and used tubes available, many factory new in original packaging. Other than inpesction, we cannot electrically test most of these tubes, and must be sold as-is.

* The CATALOG will appear below shortly!
Don't forget these illustrated sections take a few seconds to load, but they are worth the wait!



CATALOG: JUST SCROLL DOWN TO SEE EVERYTHING !down
PMT/Phototube Reference Data
Phototube/PMT S-Curves
CLICK for BIGGER PIC!
CLICK for BIGGER PIC!
PMT Selection Guide
CLICK for BIGGER PIC!
CLICK for BIGGER PIC!
Phototube/PMT Data
CLICK to SEE, detailed RCA Data!
CLICK to SEE!
Hamamatsu PMT
Cross-Reference

CLICK for BIGGER PIC!
CLICK for BIGGER PIC!
Hamamatsu PMTs Hamamatsu PMT
Electrode Ratios

CLICK for BIGGER PIC!
CLICK for BIGGER PIC!
Amperex, RTC and Philips PMTs were all made in the same factory in France (Brive),
which is now the independent company PHOTONIS
Photonis, CLICK to visit.
You can visit Photonis
HERE
Visit Electron Tubes
ET Enterprises
Want to learn about quantum theory and PMT applications?
Visit DIYPhysics and
look around!
CLICK to Visist DIYPHYSICS!
E-mail us
*Want something? Click here to e-mail us!
We accept Visa/MC for fast order processing.

Surplus, Unused Factory Boxed Tubes from Philips Medical Systems
over 600 factory boxed tubes available!

All other stock in numerical order comes AFTER this section!
SALE!  CLEARANCE
50% or MORE OFF!
 SALE!

WE NEED THE SPACE, WE HAVE TO CLEAR OUT THESE BULKY BOXED TUBES
Great for lab experiments, schools, etc., they all have connectors for bias networks (can be common for many tubes) and some output pulse forming networks already installed

TUBE NUMBER
MANUFACTURER/ NOTES
QUANTITY
UNIT PRICE
4535 673 17671
( 453567317671 )

R1307-23
4535 673 17671
R1307-33

R1307-33 Hamamatsu 3 inch/76mm end view 8-stage PMT, Bi-alkali cathode, 300-650nm range, peak sensitivity 420nm, 700G1. Unused, in shock-mounted factory boxes, includes tube interface assembly. Factory data is HERE.


*EMAIL US!CLICK TO ORDER
20
SALE!
NEW
$95
each
4535 673 17731
( 453567317731 )

XP3312/SN
4535 673 17731
XP3312/SN

XP3312/SN Philips 3 inch/76mm end view 8-stage PMT, high PHR, high gain, 290-650nm range, 1KV operating voltage. Unused, in shock-mounted factory boxes, includes tube interface assembly.
Rear View, SP=short pin
*EMAIL US!CLICK TO ORDER
10
SALE!
NEW
$95
each
4535 673 17771
( 453567317771 )

S83054FA1
4535 673 17771
S83054FA1

S83054FA1 Burle 2 inch/51mm end view PMT, 701G3. Unused, in shock-mounted factory boxes, includes tube interface assembly.
*EMAIL US!CLICK TO ORDER
58
SALE!
NEW
$95
each
4535 673 17821
( 453567317821 )

XP2102/SN
4535 673 17821
XP2102/SN

XP2102/SN Photonis 2 inch/51mm end view 10-stage PMT, Bi-alkali cathode, 290-650nm range, peak sensitivity 420nm, 701G3, Gamma Camera tube. Unused, in shock-mounted factory boxes, includes tube interface assembly.
*EMAIL US!CLICK TO ORDER
19
SALE!
NEW
$95
each
4535 673 17841
( 453567317841 )

R1306-25
4535 673 17841
R1306-25

R1306-25 Hamamatsu 2 inch/51mm end view 8-stage PMT, Bi-alkali cathode, 300-650nm range, peak sensitivity 420nm, 701G2. Unused, in shock-mounted factory boxes, includes tube interface assembly. Factory data is HERE.


*EMAIL US!CLICK TO ORDER
18
SALE!
NEW
$95
each
4535 673 17921
( 453567317921 )

XP3212/SN
4535 673 17921
XP3212/SN

XP3212/SN Photonis 2 inch/51mm end view 8-stage PMT, high PHR, high gain, 705G1. Unused, in shock-mounted factory boxes, includes tube interface assembly.
*EMAIL US!CLICK TO ORDER
10
SALE!
NEW
$95
each
4535 673 17961
( 453567317961 )

XP5212/SN
4535 673 17961
XP5212/SN

XP5212/SN Photonis 2 inch/51mm low BX end view 9-stage PMT, high PHR, high gain, low 708G1. Unused, in shock-mounted factory boxes, includes tube interface assembly.
*EMAIL US!CLICK TO ORDER
14
SALE!
NEW
$95
each
4535 673 17991
( 453567317991 )

XP5212/SN
4535 673 17991
XP5212/SN

XP5212/SN Photonis 2 inch/51mm low BX end view 9-stage PMT, high PHR, high gain, low 708G3. Unused, in shock-mounted factory boxes, includes tube interface assembly.
*EMAIL US!CLICK TO ORDER
11
SALE!
NEW
$95
each
4535 673 18301
( 453567318301 )

XP5312/SN
4535 673 18301
XP5312/SN

XP5312/SN Philips 3 inch/76mm low BX end view 9-stage PMT, high PHR, high gain, low 709G1. Unused, in shock-mounted factory boxes, includes tube interface assembly.
*EMAIL US!CLICK TO ORDER
This tube is now featured in DIY Physics latest Scintillation Detector,
see their site here for the full details:

CLICK HERE to VISIT!

CLICK HERE for the DIYPhysics Detector contruction article.
CLICK HERE for the DIYPhysics CDV700Pro contruction article.

CLICK for bigger PICTURE!

CLICK for Bigger PIC of Pinout!
115
SALE!
NEW
$95
each
4535 673 18361
( 453567318361 )

XP5212/SN1
4535 673 18361
XP5212/SN1

XP5212/SN1 Photonis 2 inch/51mm low BX end view 9-stage PMT, high PHR, high gain, 710. Unused, in shock-mounted factory boxes, includes tube interface assembly.
*EMAIL US!CLICK TO ORDER
10
SALE!
NEW
$95
each
4535 673 24871
( 453567324871 )

XP2422/SN
4535 673 24871
4535 673 24871 xp2422/sn

XP2422/SN PHILIPS/Photonis 60mm Hexagonal end view PMT, 10 stage, 702G1. Unused, in shock-mounted factory boxes, includes tube interface assembly. Have both Philips and later date Photonis marked tubes, but we cannot identify them individually from the closed boxes. Designed for Gamma cameras. Bi-alkali photocathode, 290-650nm range, peak at 420nm.


CLICK to GET DATA
Courtesty of DIY-Physics, we now have full tube data, and a great application article HERE.

*EMAIL US!CLICK TO ORDER
58
SALE!
NEW
$95
each
4535 673 24881
( 453567324881 )

XP2422/SN
4535 673 24881
4535 673 24881,  XP2422/SN

XP2422/SN PHILIPS 60mm Hexagonal end view PMT, 10 stage, 702G2. Unused, in shock-mounted factory boxes, includes tube interface assembly. Designed for Gamma cameras. Bi-alkali photocathode, 290-650nm range, peak at 420nm.





CLICK to GET DATA
Courtesty of DIY-Physics, we now have full tube data, and a great application article HERE.

*EMAIL US!CLICK TO ORDER
55
SALE!
NEW
$95
each


PMT Accessories, Sockets and Power Supplies
TUBE NUMBER
MANUFACTURER/ NOTES
QUANTITY
UNIT PRICE
11 Pin keyed PMT Socket Assemblies

11 Pin PMT socket
PICKER new Picker 13538Y assemblies with standard 11 pin keyed PMT socket (for type 931A or sim.) with voltage divider. Use as much or as little as you want of this assembly with your PMT, very handy for experimentation, easily disassembled. Nice enclosed socket assembly made from a AN/MS3102/3106 connector shell, can be screwed into a chassis connector shell with no insert. Very limited quantity available. hard socket to find, sorry, no wiring data available.
11 Pin PMT socket, rear view
4 pcs.
NEW
$25
each
11 Pin Miniature PMT Socket Assemblies

11 Pin miniature PMT socket
Hamamatsu used but very good condition 11 pin miniature PMT socket complete with electrode resistor array and mount.
Fits both R300 and R427 Hamamatsu PMTs, has leads for external HV power supply. Anode cap is output (not included).


11 Pin miniature PMT socket
8 pcs.
$25
each
12 Pin Miniature PMT Sockets

Thorn 12 pin Miniature PMT sockets, CLICK for bigger PIC!
CLICK for bigger PIC!
NEWTHORN NEW, excellent condition 12 pin miniature PMT sockets with combination PC and wire pins, blue low leakage material. Pins are in a 1/2 inch diameter circle, and there is a center hole for the tube evacuation seal. Very nice parts, hard to find in this odd size.
Pin close-up
37 pcs.
NEW
$25
each

CLICK to Visit Hamamatsu for specs.

Hamamatsu E678-13A
13 Pin Miniature PMT Sockets

Hamamatsu min. 13 pin socket, CLICK for bigger PIC!
CLICK for bigger PIC!
13 PIN Sub-Miniature Hamamatsu E678-13A PMT TUBE SOCKETS

Hamamatsu New 13 pin miniature low-leakage PMT socket with saddle mounting bracket, fits R647 and similar tubes.
NEW
Have 52
NEW
$12
each
Hamamatsu E678-13C

13 Pin Sub-Miniature PMT Sockets
Hamamatsu E678-13C
13 PIN Sub-Miniature Hamamatsu E678-13C PMT TUBE SOCKETS

New, factory boxed Hamamatsu sockets with long PC leads for 13mm PMTs. Hard to find, low leakage. .
NEW
Have 89
NEW
$10
each

each

CLICK to Visit Hamamatsu for specs.

Hamamatsu E849-34
13 Pin Miniature PMT Socket Assemblies

E849-34 socket/array
Hammatsu E849-34Hamamatsu used but very good condition 13 pin miniature PMT socket complete with electrode resistor array voltage divider and output coax cable. A great way to quickly get your PMT up and running and mounted. For R647 style tubes. Violet is -HV, coax is the output, black is ground. Like new, known good lab spares. Cables approx. 14 inches long. E849 PDF data sheet HERE.
Last 3
$59
each

CLICK to Visit Hamamatsu for specs.

Hamamatsu E849-57
13 Pin Miniature PMT Socket Assemblies

E849-57 socket/array, CLICK for bigger PIC!
CLICK for bigger PIC!
E849-57Hamamatsu used but very good condition 13 pin miniature PMT socket complete with electrode resistor array voltage divider and output coax cable (most have a coax connector attached), with mounting ears. A great way to quickly get your PMT up and running and mounted. For R647 style tubes. Violet is -HV, coax is the output, black is ground. Cables approx. 2 feet long. E849 PDF data sheet HERE.
Have 9
$69
each


E-mail us
*Want something? Click here to e-mail us!
We accept Visa/MC for fast order processing.


Photodiodes, Photocells and Photodetectors
TUBE NUMBER
MANUFACTURER/ NOTES
QUANTITY
UNIT PRICE
MILES IR Si Detectors
p/n 11748854


MILES IR sensor, CLICK for bigger PIC!
CLICK for bigger PIC!
This detector was designed for use in the Multiple Integrated Laser Engagement System (MILES) combat simulator. They are very rugged and will withstand outdoor environments. Detector type: Silicon photodiode (filtered). Spectral response: 800 to 1100nm. Active area: 100mm square. Dimensions: 1.618" diameter x .43" thick. Mounting: 4x .1" diameter holes with 1" spacing. Flooding the cell with IR from an incandescent lamp gives roughly 0.25VDc output. The cell appears to be photovoltaic, and has polarity markings on the rear surface. Individually bagged.
10 pcs.
NEW
$15
each
NSL CdS Photocells
Hermetic Case


NSL CdS Photocell
CdS photo-resistive sensor, over 20M dark resistance, approx. 200 Ohms in bright light, very wide range sensor, responds to visible light, hermetic metal/glass case. Made bt NSL, no part number marked, our ID Photocell-NSL-1. Great for all kinds of optically controlled switching, such as light switches and dimmers.
20 pcs.
NEW
$5
each
NSL CdS Photocells
Plastic Case


NSL CdS Photocell
CdS photo-resistive sensor, over 20M dark resistance, approx. 200 Ohms in bright light, very wide range sensor, responds to visible light, plastic case. Made bt NSL, no part number marked, our ID Photocell-NSL-2. Great for all kinds of optically controlled switching, such as light switches and dimmers.
20 pcs.
NEW
$4
each
NSL CdS Photocells
Metal Case


Click for bigger PIC!
Click for bigger PIC!
Click for bigger PIC!
Click for bigger PIC!
CdS photo-resistive sensor, over 3M dark resistance, approx. 300 Ohms in bright light, very wide range sensor, responds to visible light, 1.25 inch over-all metal case, 0.82 inches active area. Made bt NSL, no part number marked, our ID Photocell-NSL-3. Great for all kinds of optically controlled switching, such as light switches and dimmers.
20 pcs.
NEW
$5
each
G5832-01

Hamamatsu G5823-01, CLICK for bigger PIC!
CLICK for bigger PIC!




CLICK to Visit Hamamatsu for specs.


Hamamatsu end viewing, IR optimized InGaAs photodiode, 1.0mm square detector area, TO-18 case. New in Factory anti-static bulk pack. Min.(A/W)Responsivity=950m at 1.55um, NEP Max.(W/(Hz)1/2)=.20f, Ioff Max. Off-state Current=10nA at 5V(R), Max. V(R)=10V, C(T) Max. Capacitance=90pF. No longer made, hard to source.
52
NEW
$15
each
S5821-01

Hamamatsu S5821-01 PIN Photodiodes




CLICK to Visit Hamamatsu for specs.


Hamamatsu end viewing, Si PIN Photodiode, 1.2mm square detector area, Modified TO-18 case. New in Factory anti-static rails (50 each). Min.(A/W)Responsivity=0.6A at 960nm, wideband optical response from 320 to 1100nm, C(T) Max. Capacitance=3pF, fc=25Mhz. Current production device, ideal for high sensitivity, wide range sensing and photometry, FULL PDF DATASHEET HERE. Very nice solid state sensor, covers partial UV to IR.
100
NEW
$8
each


E-mail us
*Want something? Click here to e-mail us!
We accept Visa/MC for fast order processing.


Phototubes and PMT/Photomultiplier Tubes
In Order by CORE NUMBER

TUBE NUMBER
MANUFACTURER/ NOTES
QUANTITY
UNIT PRICE
PG14A

Hamamatsu PG-14A, CLICK for bigger PIC!
CLICK for bigger PIC!


CLICK to Visit Hamamatsu for specs.


Hamamatsu New factory boxed miniature 3-pin phototubes, 18mm side sensing. Gas photodiode, 90V operation typical, 200-650nm response. Full downloadable factory data is HERE (PDF).
9
NEW
$44
each
1P21
1P21
RCA
RCA 9 stage, side viewing popular photomultiplier. S-4 response photodetector with special Corning No. 0080 glass envelope, runs up to 1250VDC. Optimized for low light applications.

Premium beige based (non-hygroscopic) tubes, 70's manufacture, VERY HARD TO GET! New in mil white boxes and RCA boxes, some are JAN types. Same outline and base diagram as 931A, but much higher sensitivity.

CLICKCLICK HERE for data sheet 1.

CLICKCLICK HERE for data sheet 2.
7 pcs.
NEW
$95
each
1P21HA
1P21-HA

Hamamatsu 1P21HA, CLICK for bigger PIC!
CLICK for bigger PIC!


Side View

CLICK to Visit Hamamatsu for specs.


Hamamatsu 9 stage, side viewing (with ambient light mask) popular photomultiplier. S-4 response photodetector with special glass envelope, runs up to 1250VDC. Optimized for low light applications.

Unused, NEW Premium tubes, factory boxed, 1987/10 manufacture, VERY HARD TO GET! Same outline and base diagram as 931A, but much higher sensitivity and added light shield.

CLICKCLICK HERE for RCA data sheet 1.

CLICKCLICK HERE for RCA data sheet 2.
6 pcs.
NEW
$125
each
1P28
1P28
1P28
RCA
RCA and Hamamatsu High performance, 9 stage S-5 response, side-viewing photomultiplier tubes.

Factory new, mil and re-boxed.

SORRY, SOLD
NEW
$95
each
1P28HA
1P28HA Back
1P28HA Front

CLICK to Visit Hamamatsu for specs.


Hamamatsu High performance, 9 stage S-5 response, 185-700nm, side-viewing photomultiplier tubes with integral light shield. Unused bulk stock, dark stored, re-boxed, perfect condition, 1988/89 date codes.
SORRY, SOLD
NEW
$125
each
1P28HA
1P28HA Back
1P28HA Front

CLICK to Visit Hamamatsu for specs.


Hamamatsu High performance, 9 stage S-5 response, 185-700nm, side-viewing photomultiplier tubes with integral light shield. Slightly used for testing, bulk stock, dark stored, re-boxed, 1988/89 date codes.
SORRY, SOLD
$95
each
CE-A30

CETRON, CE-A30
CetronCETRON Octal photodetector, new loose service stock tubes, reboxed.

Just arrived!

SORRY, SOLD
NEW
$35
each
CE-30D

CE-30D
CetronCETRON CE-30D Octal photodetector/photodiode, new old stock, factory boxed tubes.

Just arrived!

2
NEW
$39
each
CE-34Q

CE-34Q, CLICK for bigger PIC!
Click for bigger PIC!
CetronCETRON Miniature photodetector, new bagged tubes.

Just arrived!

2
NEW
$25
each
1P37
Westinghouse 1P37
Westinghouse

Westinghouse
Photodetector (side sensing)
gas-filled S-4 photodiode for sound reproduction, 4-pin base, hard to find tube. New boxed Westinghouse parts
2
NEW
$49
each
RCA 1939 Phototubes
1P39
Sylvania (not RCA as shown) vacuum photodiode, S-4 response photodetectors, sim. to 929 but very low dark current and improved base. Very hard to find now, highly in demand for physics instruction. New in factory boxes.
Just 3
NEW
US$90
1P40
GE 1P40
GEGE
Photodetector (side sensing)
Gas photodiode, S-1 response, similar to 930, but with lower dark current and improved low water absorbtion base. New old-stock 70's boxed GE parts, all tested for zero dark current and 1uA output under light.
Have 5
NEW
$39
each
1P41
1P41
RCA end viewing, short envelope unusual gas photodiode, S-1 response photodetectors (800nm peak/90V max). RCA tubes have original boxes.
5 RCA
NEW
$29
each
B51B03S
ADIT B51B03S, CLICK for bigger PIC!
CLICK for bigger PIC!

adit b51b03s
ADITClick to visit ADIT
Front view, CLICK for bigger PIC!ADIT 10-Stage high gain 2 inch end view Photomultiplier, designed for scintillation counting and other applications where high quantum efficiency and low dark current are critical, peak sensitivity at 400nm +/- 50nm, bi-alkalai photocathode. Factory PDF data sheet is HERE. S suffix means short base. Has low leakage 14 pin di-heptal base.

Just arrived!

SORRY, SOLD
NEW
$125
each
CE-A59RX
(CE) A59RX

Cetron (CE) A59RX, CLICK for bigger PIC!
CLICK for bigger PIC!
CetronCETRON Octal phototube, new tubes, Cetron factory boxed, 1982 date codes.

Note, the CE prefix simply means made by Cetron, it was dropped in later production.
SORRY, SOLD
NEW
$69
each
CE-A59RX
(CE) A59RX

CetronCETRON Octal phototube, used tubes.

Note, the CE prefix simply means made by Cetron, it was dropped in later production.
SORRY, SOLD

$59
each
CE-63

CE-65V, CLICK for bigger PIC!
Click for bigger PIC!
CetronCETRON Miniature photodetector, new bagged tubes.

Just arrived!

SORRY, SOLD
NEW
$25
each
R105 SPL

Hamamatsu R105 SPL


CLICK to Visit Hamamatsu for specs.


Hamamatsu Upgraded (high gain/low dark current) 931A, side viewing tube with 300-650nm spectral response, peak at 400nm. Factory data is HERE. Very nice tube, can upgrade existing systems. Includes data sheet reprint, new, re-boxed from bulk package.
Just 1
NEW
$125
each
R106

R106


CLICK to Visit Hamamatsu for specs.


Hamamatsu Side viewing tube, new factory boxed, 99/11 date code..
Just 1
NEW
$125
each
R106UHHA B/L Assembly

R106 assembly, CLICK for bigger PIC!
CLICK for bigger PIC!

R106UHHA B/L

CLICK to Visit Hamamatsu for specs.


Hamamatsu Side viewing tube and bias assembly, includes light masked tube, aluminum mount, socket, HV cable and bias assembly. Appear to be new (still in factory boxes), but may be removed from something as there are some dabs of pink paint. Supplied as-is.
Just 3
NEW
$125
each
R166

R166, CLICK for bigger PIC!
CLICK for bigger PIC!

Baird Serial number
CLICK to Visit Hamamatsu for specs.


Hamamatsu Side viewing solar-blind (160-320nm) tube, from Baird Atomic and re-tested and serialized by them. New, factory boxed tubes, 95 date codes.
SORRY, SOLD
NEW
$125
each
R268

CLICK for Bigger PIC!
CLICK for Bigger PIC!

CLICK to Visit Hamamatsu


Hamamatsu small diameter end viewing photomultiplier, glass base, factory boxed, includes hard to find mating socket.
SORRY, SOLD
NEW
$195
each
R292

CLICK for Bigger PIC!
CLICK for Bigger PIC!

CLICK to Visit Hamamatsu


Hamamatsu small diameter end viewing photomultiplier, glass base, factory boxed. New 1982 production.
SORRY, SOLD
NEW
$125
each
R300E

Hamamatsu R300e photmultipliers


CLICK to Visit Hamamatsu for specs.


Hamamatsu Miniature 13mm / 1/2inch PMT with anode cap, New side-sensing, factory boxed. S-5, UV to Red, 185-650nm operating range, 340nm peak sensitivity, only older 80's date codes left. 1KV typical operating voltage, miniature 11 pin socket. Factory data is HERE. We have mating socket/divider arrays for this tube!
Data Sheets
CLICK for bigger PIC! CLICK for bigger PIC!
SORRY, SOLD
NEW
$125
each
Hamamatsu spares
R300

R300


CLICK to Visit Hamamatsu for specs.


Hamamatsu Miniature 13mm / 1/2inch side-sensing PMT with anode cap, serviceable equipment pulls, known good, 77-79 date codes. Have all been properly protected and dark stored. See data above. S-5, UV to Red, 185-650nm operating range, 340nm peak sensitivity. 1KV typical operating voltage, miniature 11 pin socket. Factory data is HERE. We have mating socket/divider arrays for this tube!
3
$95
each
R300B
CLICK for bigger PIC!
CLICK for bigger PIC!


R300D
CLICK for bigger PIC!
CLICK for bigger PIC!


R300E

CLICK for bigger PIC!
CLICK for bigger PIC!

CLICK to Visit Hamamatsu for specs.


Hamamatsu Miniature 13mm / 1/2inch side-sensing PMT with anode cap, New side-sensing, re-boxed. 89 date codes, 1 of each type on hand. S-5, UV to Red, 185-650nm operating range, 340nm peak sensitivity. 1KV typical operating voltage, miniature 11 pin socket. Factory data is HERE. We have mating socket/divider arrays for this tube!
1 ea.
NEW
$115
each
R300B/D/E

R300 Series PMTs, CLICK for bigger PIC!
CLICK for bigger PIC!


CLICK to Visit Hamamatsu for specs.


Hamamatsu Miniature 13mm / 1/2inch side-sensing PMT with anode cap, new, unused service stock, bulk packed, known good, 80's date codes. Have all been properly protected and dark stored.
S-5, UV to Red, 185-650nm operating range, 340nm peak sensitivity. 1KV typical operating voltage, miniature 11 pin socket. Factory data is HERE. We have mating socket/divider arrays for this tube!
B, SOLD
D, 1
E, 2
NEW
$125
each
R316
(factory boxed)

CLICK to Visit Hamamatsu for specs.


Hamamatsu 28mm / 1 inch end-sensing PMT with borosilicate window new in factory box complete with miniature 14 pin SOCKET!
Deep Red, 400-1200nm operating range, 800nm peak sensitivity. 1.25KV typical operating voltage. Factory data is HERE. We have mating socket/divider arrays for this tube!
Just 1
NEW
$135
each
R331-05
R331-05 Hamamatsu
R331-08 end view

CLICK to Visit Hamamatsu for specs.


Hamamatsu High tritium efficiency liquid scintillation 12-stage PMT.

2 inch synthetic silica window, integral shield, spectral response is 300nm to 650nm, 420nm peak, 1500V max.. Very low noise. Used, removed from working gamma counter, excellent condition, known good, late 1988/90 production. Hard tube to find. Factory info is HERE

Just 1
$175
each
R331-08
Hamamatsu R331-08
R331-08 end view
R331-08

CLICK to Visit Hamamatsu for specs.




Hamamatsu High tritium efficiency liquid scintillation 12-stage PMT.

2 inch (51mm) synthetic silica window, integral shield, exact spectral response of -08 version not known. Very low noise. Like new (complete with protective caps), excellent condition, known good spares, late production. Hard tube to find. Factory info on the basic R331-05 is HERE
4
$175
each
Hamamatsu R372 ES and ER Tubes.
R372 ES

CLICK to Visit Hamamatsu for specs.


Hamamatsu Side viewing PMTs, new old stock, also has ES stamped with the main part number. 70's tubes, unused and dark stored. Red enhanced bi-alkali photocathode, 185 to 750nm response (curve 451U), 410nm peak. 1250V max. excitation, 1KV typical. Double the sensitivity of the 931A, same socket and interconnect.
Just 1
NEW
$75
each
R406
R406

CLICK to Visit Hamamatsu for specs.


Hamamatsu Side viewing PMTs, new old stock, 11 pin keyed base, similar to C31004/A.
Just 1
NEW
$95
each
R427

Hamamatsu R427-3/-5 photomultipliers


CLICK to Visit Hamamatsu for specs.


Hamamatsu Miniature 13mm / 1/2inch side-sensing PMT with anode cap, New, factory boxed. SOLAR-BLIND, 160-320nm UV operating range, 200nm peak sensitivity. 1KV typical operating voltage, miniature 11 pin socket. We have mating socket/divider arrays for this tube!
Data Sheets
CLICK for bigger PIC! CLICK for bigger PIC!
SORRY, SOLD
NEW
$139
each
Hamamatsu spares
R427

R427


CLICK to Visit Hamamatsu for specs.


Hamamatsu Miniature 13mm / 1/2inch side-sensing PMT with anode cap, serviceable equipment pulls, known good, 79 date codes. Have all been properly protected and dark stored.
SOLAR-BLIND, 160-320nm UV operating range, 200nm peak sensitivity. 1KV typical operating voltage, miniature 11 pin socket. Factory data is HERE. We have mating socket/divider arrays for this tube!
4
$95
each
R427

R427 PMTs, CLICK for bigger PIC!
CLICK for bigger PIC!


CLICK to Visit Hamamatsu for specs.


Hamamatsu Miniature 13mm / 1/2inch side-sensing PMT with anode cap, new, unused service stock, bulk packed, known good, 89 date codes. Have all been properly protected and dark stored.
SOLAR-BLIND, 160-320nm UV operating range, 200nm peak sensitivity. 1KV typical operating voltage, miniature 11 pin socket. Factory data is HERE. We have mating socket/divider arrays for this tube!
2
NEW
$125
each
R450

Hamamatsu R450


CLICK to Visit Hamamatsu for specs.


Hamamatsu side view all glass PMT, 12 pin . New, still in original factory bags, but old stock (1974). Special tube, no public data avaiable from Hamamatsu. Strictly as-is condition, due to age of the tube. Re-boxed for light protection.
1
NEW
$65
each
R508

Hamamatus R508


CLICK to Visit Hamamatsu for specs.


R508 Hamamatsu 28mm side view PMT, 11 pin keyed base. New, re-boxed. OEM new old stock. strong UV response, 185-810nm optical response, 350nm peak, 1Kv typical operating voltage. 9-stage multi-alkali cathode, UV glass window. Factory Data is HERE.
SORRY, SOLD
NEW
$125
each
R580

CLICK for bigger PIC!
CLICK for bigger PIC!


CLICK to Visit Hamamatsu for specs.


Hamamatsu 1 1/4 inch end view PMT, 12 pin keyed base. New, re-boxed, complete with original test specs. OEM new old stock. 300-650nm optical response, 420nm peak, 1.25Kv typical operating voltage, 12 pin keyed base. Factory Data is HERE.

R580 Front
SORRY, SOLD
NEW
$110
each
R636-10


CLICK to Visit Hamamatsu for tube specs.


Hamamatsu wideband detector, fully shrouded, 11 pin keyed base. Deep UV to near IR, 185-930nm operating range, GaAs(Cs) photocathode, 9 stage side-on tube. Re-boxed tube. Factory data is HERE. Very hard tube to locate.
SORRY, SOLD
NEW
$195
each
R647-10 end view
R647-10
R647-01


CLICK to Visit Hamamatsu for tube specs.


R647-01 Hamamatsu Miniature 13mm / 1/2 inch end-sensing PMT, 86, 87, 88 and 89 date codes, unused service spares, re-boxed. Visible 300-650nm operating range, Borosilicate window, Bialkali cathode, 420nm peak sensitivity, 2.5ns rise time, 24ns electron transit time. 1KV typical operating voltage, miniature 13 pin socket. Factory data is HERE. Beautiful miniature PMT, current production tube.
8
NEW
$125
each
R647-25 Select, CLICK for bigger PIC!
CLICK for bigger PIC!

R647-25 Select Front View
R647-25 Select


CLICK to Visit Hamamatsu for tube specs.


Hamamatsu Miniature 13mm / 1/2 inch end-sensing PMT late 98 date code, unused service spare, re-boxed. Visible 300-650nm operating range, 2.5ns rise time, 24ns electron transit time, complete with integral magnetic shield. Basic tube data is HERE. 1KV typical operating voltage, miniature 13 pin socket. Beautiful miniature PMT.
SORRY, SOLD
NEW
$150
each
868
RCA 868, Factory Boxed
RCA
RCA gas photodiode, S-1 response photodetector, very common tube used in older motion picture projectors. All unused RCA factory boxed (dark stored). Same curves as 1P41, terminals per 1P29. We have been out of stock for a while, but finally got some nice tubes in stock.
6
NEW
$32
each
R878
Hamamatsu R878, CLICK for bigger PIC!
CLICK for bigger PIC!

R878

CLICK to Visit Hamamatsu for specs.


Hamamatsu 51mm / 2 inch end view PMT, with 14 pin diheptal base, new factory boxed. 300-650nm, 420nm peak sensitivity, 1.5KV max bias voltage, 1250V typical. Has bonded scintillation crystal on front, with optical grease (all protected by plastic cap), ready to use, NOT just a stock tube.

Popular scintillator tube, same optical performance as XP2102B, 9575KB and 9957KB. Basic factory tube data is HERE.


CLICK for bigger PIC! CLICK for bigger PIC!
SORRY, SOLD
NEW
$195
each
R878-14

R878-14
CLICK for bigger PIC!
CLICK for bigger PIC!


R878-14 Front

CLICK to Visit Hamamatsu for specs.


Hamamatsu 2 inch end view PMT, with integral bias network and positioning rod. 300-650nm, 420nm peak sensitivity, 1.5KV max bias voltage, 1250V typical.

Used, from working equipment, great for lab experiments, includes mating cable connector. Excellent condition, dark stored. Popular scintillator tube, same performance as XP2102B, 9575KB and 9957KB. Basic tube data is HERE.


CLICK for bigger PIC! CLICK for bigger PIC!
SORRY, SOLD
$69
each
R905
R905 with socket assy., CLICK for bigger PIC!
CLICK for bigger PIC!
R905

CLICK to Visit Hamamatsu for specs.


Hamamatsu 11 pin Side view PMT, includes socket and bias network. Difficult tube to find, no longer in production.

Mint condition, dark stored, service spares, re-packed.


SORRY, SOLD
$95
each
JAN CEQ 918

Cetron JAN 918

CETRON
Cetron mil spec gas photodiode, S-1 response photodetector in 4 pin plug in format, runs up to 90VDC. New in govt. boxes. Outline and terminal connections same as 1P29.

5 Pcs.
NEW
$30
each
918
CGE 918 Photodiodes
GE
CGE
Gas photodiode, S-1 response photodetector in 4 pin plug in format, runs up to 90VDC. New in factory boxes. Outline and terminal connections same as 1P29.
SORRY, SOLD
NEW
$25
each
918

RCA 918
RCA
RCA gas photodiode, S-1 response photodetector in 4 pin plug in format, runs up to 90VDC. New in somewhat bedraggled factory boxes. Outline and terminal connections same as 1P29.

3 Pcs.
NEW
$25
each
(WL) 922
WL922 WL-922

Westinghouse WL 922

Westinghouse
Westinghouse vacuum photodiode, S-1 response photodetector in cartridge format, runs up to 500VDC. New in factory boxes. 'WL' is simply Westinghouse's prefix, identical to standard 922 tubes.

SORRY, SOLD
NEW
$39
each
922

RCA 922

RCA
RCA vacuum photodiode, S-1 response photodetector in cartridge format, runs up to 500VDC. New in factory boxes.

SORRY, SOLD
NEW
$39
each
923

RCA 923 Photodiode
RCA
RCA and Cetron gas filled photodiode (90V), S-1 response photodetector in 4-pin format, bulk stock, re-boxed. All look very good, but older tubes.

5
NEW
$35
each
CE-923

Cetron CE-923
CETRON
Cetron gas filled photodiode (90V), S-1 response photodetector in 4-pin format, bulk stock, re-boxed, Cetron premium tubes with larger non-obstructing anodes. All look very good, but older tubes.

8
NEW
$39
each
926

RCA 926

RCA
RCA vacuum photodiode, S-3 response photodetector in cartridge format, runs up to 500VDC. New in govt. boxes.

Just 2
NEW
$39
each
926

RCA 926

RCA
RCA vacuum photodiode, S-3 response photodetector in cartridge format, runs up to 500VDC. New in factory boxes.

Have 4
NEW
$39
each
927

927

RCA
RCA miniature gas photodiode, S-1 response photodetector. Factory boxed tubes, note, older 1960's date codes.
SORRY, SOLD
NEW
$33
each
(WL) 927

Westinghouse

Westinghouse miniature gas photodiode, S-1 response photodetector, new in factory boxes.
Last 1
NEW
$39
each
R928HA

R928
R928



CLICK to Visit Hamamatsu for specs.


Hamamatsu side viewing photomultiplier with factory masking, factory boxed. 180-900nm, extended UV and IR performance, 400nm peak, very high quantum efficiency.
SORRY, SOLD
NEW
$105
each
CE-929
CetronCetron vacuum photodiode, S-4 response photodetectors. Very hard to find now, highly in demand for physics instruction.
SORRY, SOLD
NEW
US$90
929
RCA
RCA vacuum photodiode, S-4 response photodetectors. Very hard to find now, highly in demand for physics instruction. These are all older stock, 60's, but still work and look great.
SORRY, SOLD
NEW
US$60
930
RCA 930
CetronCETRON
RCA
RCA and CETRON gas photodiodes, factory boxed, S-1 response photodetectors in standard octal format. See also 1P40.
5 RCA
4 CETRON
NEW
$39
each


E-mail us
*Want something? Click here to e-mail us!
We accept Visa/MC for fast order processing.


Phototubes and PMT/Photomultiplier Tubes
In Order by CORE NUMBER

TUBE NUMBER
MANUFACTURER/ NOTES
QUANTITY
UNIT PRICE
930
RCA
RCA gas photodiode, S-1 response photodetectors in standard octal format. See also 1P40. White boxed and re-boxed, sixties date codes, but look very good.
3 RCA
NEW
$25
each
931-A
931A


931A Pinout


sylvania
RCA


RCA and Sylvania 9 stage, side viewing popular photomultiplier. S-4 response photodetector with special Corning No. 0080 glass envelope, runs up to 1250VDC.

Premium beige based (non-hygroscopic) tubes, 70's manufacture, VERY HARD TO GET! New in factory boxes. Same outline and base diagram as 1P21. Have some 931B, and used 931A's as well, email for details.

CLICKCLICK HERE for data sheet 1.

CLICKCLICK HERE for data sheet 2.

CLICKCLICK HERE for data sheet 3.
3 pcs.
NEW
$95
each
931-A
931A


GE 931A
Raytheon 931A


GE and Raytheon 9 stage, side viewing popular photomultiplier. S-4 response photodetector with special Corning No. 0080 glass envelope, runs up to 1250VDC.

Premium beige based (non-hygroscopic) tubes, VERY HARD TO GET! New in factory boxes. Same outline and base diagram as 1P21.

CLICKCLICK HERE for data sheet 1.

CLICKCLICK HERE for data sheet 2.

CLICKCLICK HERE for data sheet 3.
6 GE
4 Raytheon
NEW
$95
each
JAN-931VA

RCA JAN-931VA
Click for bigger PIC!




RCA JAN-931VA

RCA
RCA 9 stage, side viewing popular photomultiplier. S-4 response photodetector with special Corning No. 0080 glass envelope, runs up to 1250VDC.

Premium red based (non-hygroscopic) mil-spec tubes, late manufacture, VERY HARD TO GET! New in factory boxes. Same outline and base diagram as 1P21.
CLICKCLICK HERE for data sheet 1.
CLICKCLICK HERE for data sheet 2.
CLICKCLICK HERE for data sheet 3.

931A Pinout
6 pcs.
NEW
$125
each
934
RCA 934
RCA
RCA VACUUM photodiode, S-4 response photodetectors in miniature 3 pin format, max. 250VDC. Factory RCA boxed (some creases from long storage, but tubes are fine), 74-77 date codes, all look very good.
6
NEW
$49
each
935

RCA 935

RCA
RCA photodiode, S-5 UV response photodetector, used, but known good, excellent physical condition. We get many requests for this tube, but it has proven very hard to find.
4
$50
each
Amperex


CLICK for bigger PIC!
CLICK for bigger PIC!

Amperex XP1010
Amperex XP1010

Amperex
1 1/4 inch End Window PMT tube, with 12 pin keyed base. New old OEM stock, re-boxed.
2
NEW
$125
each
Amperex


CLICK for bigger PIC!
CLICK for bigger PIC!

Amperex XP1010
Amperex XP1010

Amperex
1 1/4 inch End Window PMT tube, with 12 pin keyed base. New old OEM stock, used for brief testing, re-boxed.
1
$100
each
Amperex


CLICK for bigger PIC!
CLICK for bigger PIC!

Amperex XP1011S
Amperex XP1011S

Amperex
1 1/4 inch End Window PMT tube, with 12 pin keyed base. New old OEM stock, re-boxed. Has odd stripe along one edge. SEE HERE.
1
NEW
$125
each
R1166-05
R1166-05

CLICK to Visit Hamamatsu for specs.


Hamamatsu High performance, 10 stage, miniature (19mm, 3/4 inch) end viewing photomultiplier tubes with integral light shield. 420nm peak sensitivity, full data at Hamamatsu HERE, current production. Poor original boxes, re-boxed. Have one new gold mating socket for this tube, $25.
SORRY, SOLD
NEW
$125
each
Hamamatsu R1193U-03, CLICK for bigger PIC!
CLICK for bigger PIC!

R1193U-03

CLICK to Visit Hamamatsu for specs.


R1193U-03
Hamamatsu High performance, bi-planar, ultra-fast phototube (270ps risetime, 100ps fall time) with integral light shield and lab housing (with tripod mount and connectors). UV sensitive, linearized for laser power detection, data from Hamamatsu HERE, 2.5KV typical excitation. In fitted light tight case. Slightly used, some marks on plastic storage case, tubes in excellent, like new condition. Also available with front Oriel mounting ring for screw mounitng, add $20.
SORRY, SOLD
$345
each
end-port view

R1306-02

R1306-02, CLICK for bigger PIC!
CLICK for bigger PIC!

CLICK to Visit Hamamatsu for specs.


UsedHamamatsu end viewing 2 inch multi-stage tube, with HV divider and signal amplifier assembly. Used, very good condition. Very handy for experimenters that want a ready-to-go PMT assembly. S-11 visible, 300-650nm range, for visible and scintillation counting. 1KV typical operating voltage. Factory info HERE.
Data Sheets
CLICK for bigger PIC! CLICK for bigger PIC!
SORRY, SOLD
$60
each
R1307-10

Hamamatsu R1307-10, CLICK for bigger PIC!
CLICK for bigger PIC!


R1307-10 Front view, CLICK for bigger PIC!
CLICK for bigger PIC!

CLICK to Visit Hamamatsu for specs.


R1307-10 Label
Hamamatsu New, bulk packed 3 Inch circular PMT for scintillation counting, with rear amplifier and bias assembly (detachable). Still with factory test sheets, protective caps and socks. UV-Visual range, 300-650nm operating range, 420nm peak sensitivity. 1KV typical operating voltage. Factory data is HERE. LOC: WSS (FEDEXBOX, RHW)
Data Sheets
CLICK for bigger PIC! CLICK for bigger PIC!
Last 1
NEW
$95
each
R1398
R1398/HA

CLICK to Visit Hamamatsu for specs.


Hamamatsu 28mm inch end sensing circular new boxed tubes, UV glass window. 1 each regular and HA versions.
1 Ea.
$179
each
R1410

R1410
R1410, window view

SRC Laboratories, Inc.
SRC Labs 2 inch end viewing photomultiplier assembly with voltage divider and connector. Factory data is HERE, has a special end window, good to Blue/UV.

New, in factory box.

1
$75
each
R1414

R1414

CLICK to Visit Hamamatsu for specs.


R1414Hamamatsu Miniature side view tube, bulk factory boxed, 2000 date codes, discontinued type, hard to find! 1/2 inch (13mm) diameter, 11 pin miniature glass base. 9-stage, SbCs photocathode S5 spectral response (185-650nm), UV sensitive.

Just arrived!

SORRY, SOLD
NEW
$115
each
R1463

R1463

CLICK to Visit Hamamatsu for specs.


Hamamatsu Miniature 13mm end view tube, factory boxed complete with mating socket!
Unusual deep UV capability, 185nm to 850nm, 10-stage, 1.25KV max. operating voltage. factory data is HERE.

Just arrived!

SORRY, SOLD
NEW
$175
each
Hamamatsu R1516
R1516

CLICK to Visit Hamamatsu for specs.


Hamamatsu side view PMT 28mm, 11 pin keyed base. Deep UV response, 185nm-650nm with 400nm peak sensitivity, 9-stage, UV-glass window, 1KV max. operating voltage. Discontinued production (full data still at Hamamatsu HERE)! New tubes, re-boxed, 91.11 date codes. Just arrived!

Have 9
NEW
$125
each
R1538-13

R1538-13

R1538-13, CLICK for bigger PIC!
CLICK for bigger PIC!

CLICK to Visit Hamamatsu for specs.


UsedHamamatsu hexagonal end viewing 2 inch multi-stage tube, with HV divider and signal amplifier assembly and sping loaded mount, and special window. Used, very good condition. Very handy for experimenters that want a ready-to-go PMT assembly. Factory data is HERE.

Just arrived!

SORRY, SOLD
$95
each
R1548-01 c/w E2037-01 Base

R1548-01 Front


R1548-01 w/E2037 socket, CLICK for bigger PIC!
CLICK for bigger PIC!
Very Rare DUAL PMT!

CLICK to Visit Hamamatsu for specs.


UsedHamamatsu miniature DUAL element end viewing 1 inch multi-stage tube, with removable E2037-01 HV divider socket assembly. 300-650nm response, with 420nm peak, 10-stage 8x18mm dual elements. Borosilicate glass windows, Bialkali photocathode, 1750V max supply, 7 pin base, 1.8ns anode risetime. For high resolution scintillation counting and Positron CT applications. Used, very good condition known good pulls, individually bagged for protection. Factory data is HERE.
CLICK HERE for data sheet!
E2037-01 Socket/HV divider, CLICK for bigger PIC!
E2037-01 Socket/HV divider, CLICK for bigger PIC!
5 sets
$125
each
R1594-01

R1594-01


R1594-01

CLICK to Visit Hamamatsu for specs.


UsedHamamatsu miniature end viewing 1 inch multi-stage tube, with 14 pin glass base and integral magnetic shield. Used, very good condition known good pulls, individually boxed for protection. Base Diagram:
R1594-01 Base Diagram
3
$115
each
R1617-06

CLICK to Visit Hamamatsu for specs.

Hamamatsu end view PMT 19mm, 12 pin miniature glass base. 300-850nm S-20 spectral response with 420nm peak sensitivity, 10-stage, multi-alkali cathode, full data still at Hamamatsu HERE)! No data on -06 characteristics. Like new tube, (good service center spare, dark stored) 0207 date code, hard to source tube. Just arrived!

SORRY, SOLD
$125
each
CE-1645

CE-1645
CETRON Miniature photodetector, new re-boxed tube.

Just arrived!

Just 1
NEW
$25
each
Front View

Hamamatsu R1759-01
R1759-01

CLICK to Visit Hamamatsu for specs.


R1759-01 Hamamatsu Miniature circular 1 inch (25mm) end view tube, 14 pin miniature glass base.
300nm to 650nm response with 420nm peak sensitivity, 7-stage, 800V max. operating voltage. Bi-alkali cathode, borosilicate window, full body shield, still current production (full data at Hamamatsu HERE)! Fully tested pulls, look perfect, known good. Just arrived!

SORRY, SOLD
$125
each
Hamamatsu R1847-10, CLICK for bigger PIC!
CLICK for bigger PIC!

R1847-10
Face View

CLICK to Visit Hamamatsu for specs.


Hamamatsu Medium circular 51mm end view tube, factory boxed complete with bias network and connectors.
300nm to 650nm response with 420nm peak sensitivity, 10-stage, 1KV max. operating voltage. Bi-alkali cathode, borosilicate window. Factory data is HERE. Just arrived!

Have 4
NEW
$149
each
XP-1918
XP1918 / XP 1918


Amperex XP-1918, CLICK for bigger PIC!
CLICK for bigger PIC!

XP-1918 Tube Face
Amperex


AMPEREX new end viewing 3/4 inch multi-stage miniature tube with individual test data, factory boxed. Has protective port cover. Popular medical imaging tube, these are all from imaging machine spares stock.

We have NEW sockets, and used socket assemblies for these. They are 19 mm, round, 10-stage, quartz window, UV-sensitive (160-650nm / 420nm peak), fast tubes. Also has Philips number, 9301 069 50003 (9301-069-50002). See FULL PDF DATA HERE from Photonis!
SORRY, SOLD
NEW
$95
each
$800/10
XP-2011

XP-2011
Amperex
AMPEREX new end viewing 2 inch multi-stage tube with test data, factory boxed. Made in France. Has protective port cover.

Just arrived!

1
NEW
$125
each
2022
Westinghouse 2022 Phototubes
Westinghouse

Westinghouse
Photodetector (side sensing)
photodiode, octal base, very uncommon tube. New boxed Westinghouse parts
2
NEW
$45
each
XP2072
Philips
End viewing 1.5 inch multi-stage tube, factory new, boxed.

Just arrived!

SORRY, SOLD
NEW
$129
each
Amperex


S2102D

CLICK for bigger PIC!
CLICK for bigger PIC!


S2102D
AMPEREX
End viewing 2 inch circular multi-stage tube, pull outs, good condition, with rear bias network and connectors.

Just arrived!



S2102D
4
$49
each
XP2102/SL

CLICK for bigger PIC!
CLICK for bigger PIC!


CLICK for bigger PIC!
CLICK for bigger PIC!
Philips
End viewing 2 inch circular multi-stage tube, pull outs, good condition, with rear bias network and connectors. Data printed on each tube.

Just arrived!

SORRY, SOLD
$49
each
XP2228/D3

XP2228/D3

XP2228/D3
XP2228/D3

Photonis, CLICK to visit.
End viewing 2 inch (51mm) quartz window circular multi-stage tube, UV/blue sensitive 150-650nm), used for scintillation counters, (integral light shield), with individual factory data, new factory boxed tube. PDF Datasheet is HERE.

Have 2
NEW
$175
each
XP3212/SQ

XP3212/SQ, CLICK for bigger PIC!
CLICK for bigger PIC!


XP3212/SQ Front
Photonis

End viewing 2 inch circular multi-stage tube, factory applied silicone optical grease for scintillator plate attachment, with rear bias network and connectors. Gamma Camera PMT, 290-650nm, 420 nm peak response, 1KV typical. Data sheet HERE. Data printed on each tube. Very late production, January 2003!

Have one additional Philips /SQ3 tube, 1992 date code, $ 95.

Just arrived!

1
NEW
$110
each
XP3312/SQ

XP3312/SQ Click for bigger PIC!
CLICK for bigger PIC!


XP3312/SQ Front
Photonis

End viewing 3 inch circular multi-stage tube, factory applied silicone optical grease for scintillator plate attachment, with rear bias network and connectors. Gamma Camera PMT, 290-650nm, 420 nm peak response, 1KV typical. Data sheet HERE. Data printed on each tube. Very late production, January 2003!
Just arrived!
6
NEW
$140
each
R3318-02

CLICK for bigger PIC!
CLICK for bigger PIC!


CLICK for bigger PIC!
CLICK for bigger PIC!

CLICK to Visit Hamamatsu for specs.




Hamamatsu 51mm / 2 Inch square PMT, with rear amplifier and bias assembly (all wire functions marked internally, uses +/-15VDC plus tube HV). Removed from equipment, very good physical condition, untested. 300-650nm optical sensitivity, 420nm peak, for visual or scintillation counting, 1KV typical operating voltage. Factory data is HERE.
Data Sheets
CLICK for bigger PIC! CLICK for bigger PIC!
SORRY, SOLD
$75
each
XP3402B

XP3402B, CLICLK for bigger PIC!
CLICK for bigger PIC!
Mullard
End viewing 2 inch multi-stage tube, complete with test data, factory new, boxed.

Just arrived!

2
NEW
$125
each
XP3421/SA

XP3421/SA
Tube Data

AMPEREX end viewing 3 inch hexagonal multi-stage tube, complete with test data, factory new, reboxed. Has integral divider and pulse forming network, ready to use. Made in France. Has protective port cover.

Just arrived!

1
NEW
$175
each
XP3422/SG

XP3422/SG, CLICK for bigger PIC!
CLICK for bigger PIC!


XP3422/SG Front Port
also some marked:
IGEMS P/N 46-40666P31
XP3422/SG

Amperex/Photonis factory spec is 60 mm, hexagonal, 8-stage, high PHR, blue sensitive tube. This is an end viewing, 290-650nm (420nm peak sensitivity) 2 1/4 inch hexagonal multi-stage tube with attached bias network and edge shielding, used from a working Gamma Camera Array, all have optical grease for tight attachment to the scintillator crystal. Bargain priced, great for experimenting! LOC: WSS1 Has integral divider and pulse forming network, ready to use. Made by Amperex/Photonis.
55
Sale!
Now 2 for $95!
$95
each
XP3442/SG6-S

XP3442-SG6-S, CLICK for bigger PIC!
CLICK for bigger PIC!


Front Port
Tube Info

Photonis end viewing 2 1/4 inch hexagonal multi-stage tube with attached bias network and shielding, complete with test data, factory new, boxed. Has integral divider and pulse forming network, ready to use. Made in France.

Just arrived!

SORRY, SOLD
NEW
$135
each


E-mail us
*Want something? Click here to e-mail us!
We accept Visa/MC for fast order processing.


Phototubes and PMT/Photomultiplier Tubes
In Order by CORE NUMBER

TUBE NUMBER
MANUFACTURER/ NOTES
QUANTITY
UNIT PRICE
P4181B, CLICK for bigger PIC!

CLICK for bigger PIC!


4181B Front
Centronic P4181B

Centronic
Ex-service stock, probably new, re-boxed end viewing PMT tube, has black front cover (IR filter?), made in Great Britain, individually serialized. Label data here.
SORRY, SOLD
$95
each
Centronic P4231RA

P4231RA Front Centronic P4231RA

Centronic
New, factory boxed end viewing PMT tube, beautiful tube, perfect condition, made in Great Britain, individually serialized. Label data here.
1
NEW
$125
each
RCA 4422
4422
RCA
RCA
Side viewing Photomultiplier
Servce stock tubes, re-boxed. Low leakage 11-pin keyed bases. Cannot find any data on this tube.
Just 2
NEW
$90
each
Hamamatsu R4446-02, CLICK for bigger PIC!
CLICK for bigger PIC!

R4446-02
Face View

CLICK to Visit Hamamatsu for specs.


R4446-02 Hamamatsu Large 60mm square end view tube, factory boxed complete with bias network and connectors.
300nm to 650nm response with 420nm peak sensitivity, 10-stage, 1KV max. operating voltage. Bi-alkali cathode, borosilicate window. Factory data is HERE.Just arrived!

Have 3
NEW
$145
each
Burle 4552, CLICK for bigger PIC!
CLICK for bigger PIC!

4552, Side View
4552
CLICK to visit BurleCLICK to visit Burle

BURLE Side view 9-stage PMT, 300-660nm response, 1250V max excitation. 2.5x10^6 current amplification gain, 1.8ns risetime. 12 pin all glass base. Hard to find tube, no longer in production, re-boxed unused spare tubes, late 2001 production dates.
8
NEW
$110
each
RCA 4837, CLICK for bigger PIC!
CLICK for bigger PIC!

4837
CLICK for bigger PIC!RCA
RCA
Side View Photomultiplier

Individually serialized tubes with high insulation 11 pin base. Some still have the individual tube test data sheets. These were boxed in old black foam which deteriorated, we removed that, and then dark bagged the tubes, and stored them securely. Old date codes (74), but in mint condition. Data shows 1KV test voltage, .03uA dark current at 890V. Also have 2 loose (unboxed) tube, $49 each.
Have 6
NEW
$95
each
4859

CLICK for bigger PIC!
CLICK for bigger PIC!
End viewing 3 inch circular multi-stage tube, pull outs, very good condition, with rear bias/amplifier network. The amp can be easily unplugged and removed, leaving just the tube and bias network.

Black cover slips off to see tube and amplifier.
Assembly/tube information on each unit HERE.
Just arrived!

SORRY, SOLD
$59
each
4880A

CLICK for bigger PIC!
CLICK for bigger PIC!


4880A
4880A

RCA
RCA 3 inch circular multistage Photomultiplier (top sensing)
We include the high quality, low-leakage mating socket assembly with bias network (can be unplugged) that was used with the tube for a scintillator assembly. New, factory boxed, very hard to find!
2
NEW
$250
each
4883A/V2

CLICK for bigger PIC!
CLICK for bigger PIC!




RCA
RCA 2 inch circular multistage Photomultiplier (top sensing)
Includes low-loss mating socket and bias assembly. New, factory boxed, very hard to find!
3
NEW
$150
each
4900

RCA 4900 PMT

RCA 4900 Front


RCA
RCA 3 inch circular multistage Photomultiplier (top sensing)
New, factory boxed, very hard to find, box label has acceptance data!
2
NEW
$195
each
5581

5581

RCA

RCA gas photodiode, 100V max/90V typ., S-4 response photodetectors in standard octal format, MIL SPEC TUBE. Thi sbatch has the older style Black/Red/White factory boxes, not Red/White as pictured.

400nm peak response (4000 angstroms).
Have 2
NEW
$44
each
5581

Cetron 5581

Cetron CETRON gas photodiode, 100V max/90V typ., S-4 response photodetectors in standard octal format, MIL SPEC TUBE.

400nm peak response (4000 angstroms).
Have 4
NEW
$44
each
5582

RCA 5582 Photodiode

RCA

RCA gas photodiode, 100V max/90V typ., S-4 response photodetectors in cartridge format, MIL/Industrial grade tube. Used in sound reproduction from film.

400nm maximum response (4000 angstroms).
7
NEW
$35
each
5583

RCA 5583 Photodiode

RCA

RCA gas photodiode, 100V max/90V typ., S-4 response photodetectors in miniature 3-pin format, MIL/Industrial grade tube. Used in sound reproduction from film.

400nm maximum response (4000 angstroms).
SORRY, SOLD
NEW
$39
each
R5600U + E5780
CLICK for bigger PIC!
CLICK for bigger PIC!

CLICK for bigger PIC!
CLICK for bigger PIC!

Units separated

R5600U + E5780

CLICK to Visit Hamamatsu for specs.


Hamamatsu The R5600U is a super-compact photomultiplier tube in an OPTO-8 package. The bialkali photocathode is 8 mm in diameter and the outer PMT diameter is 16 mm. The metal channel eight stage dynode allows for a very small over-all package which can be used where no other PMT can fit. Gain is 3 x 10^5 at 800V and a peak quantum efficiency of 15% (at 400 nm). These include the Hamamatsu E5780 voltage divider base assembly, which is described in the data sheet below. Risetime, falltime and pulse width are approx. 650, 1050, and 1500 psec. Transit time spread of 280 psec FWHM at 800 V with a single photoelectron event, response time of the PMT is 0.65 ns. Spectral range is 300-650nm, Bialkali photocathode. FULL R5600 PDF FACTORY DATA IS HERE. These are all excellent condition known good pulls, look like new.
R5600U
SORRY, SOLD
$125
each
5819

RCA 5819


RCA 5819
RCA

RCA 10 stage, head on 2 inch, S-11 response photomultiplier. Old factory boxed stock, complete with full datasheet.

440nm maximum response (4400 angstroms), negligible red response. 14 pin large diheptal base.
1
NEW
$149
each
G5832-01

Hamamatsu G5823-01, CLICK for bigger PIC!
CLICK for bigger PIC!




CLICK to Visit Hamamatsu for specs.


Hamamatsu end viewing, IR optimized InGaAs photodiode, 1.0mm square detector area, TO-18 case. New in Factory anti-static bulk pack. Min.(A/W)Responsivity=950m at 1.55um, NEP Max.(W/(Hz)1/2)=.20f, Ioff Max. Off-state Current=10nA at 5V(R), Max. V(R)=10V, C(T) Max. Capacitance=90pF. No longer made, hard to source.
52
NEW
$15
each
R6095

CLICK to Visit Hamamatsu for specs.


Hamamatsu end viewing 11 stage photomultiplier 28mm, 300-650nm response, 14 pin glass base, NEW FACTORY BOXED WITH SOCKET! Have full factory PDF data HERE.
Just 1
NEW
$149
each
6199

Hamamatsu 6199
Hamamatsu 6199 Front
Hamamatsu 6199



CLICK to Visit Hamamatsu for specs.


Hamamatsu end viewing 10 stage photomultiplier 1 1/2 inch, S-20 (300-850nm) response, factory boxed. Same characteristics as R-1387.
1
NEW
$120
each
6199HA

6199HA
6199HA



CLICK to Visit Hamamatsu for specs.


Hamamatsu end viewing 10 stage photomultiplier 1 1/2 inch, S-20 (300-850nm) response, added factory masking, 1 factory boxed. Factory data is HERE. One re-boxed. Same characteristics as R-1387.
1
NEW
$125
each
XP6202
XP6202

CLICK for bigger PIC!
CLICK for bigger PIC!
Philips

XP6202
End viewing 2 inch advanced ultra-compact multi-stage tube, complete with test data, factory new, boxed.

Just arrived!

SORRY, SOLD
NEW
$149
each
XP6202/03
XP6202/03

CLICK for bigger PIC!
CLICK for bigger PIC!
Philips

Philips
End viewing 2 inch advanced ultra-compact multi-stage tube, factory new, boxed.

Just arrived!

SORRY, SOLD
NEW
$149
each
6217

RCA 6271, CLICK for bigger PIC!
CLICK for bigger PIC!

RCA
RCA Large Window (2 inch) Photomultiplier (top/end sensing)
10-stage tube, with S-11 response, special Corning No. 0080 window glass. Same size and interconnect as 5819, curves as per 4438, non-hygroscopic base. New, but as received, loose, no original box, 1965 stock. Large 14 pin diheptal base.
Just 1
NEW
$90
each
R6233-04, CLICK for bigger PIC!
CLICK for bigger PIC!

Kodak Data

R6233-04

CLICK to Visit Hamamatsu for specs.


Front ViewHamamatsu High performance, END viewing 76mm PMT with integral light shield and 14 pin Diheptal base. Base tube is 300-650nm response, 420nm peak response, Borosilicate window, Bialkali cathode, 1000V rated. -04 may be selected for lower wavelength range. Used in Kodak ACR 2000 and ACR 2000i units. Factory data is HERE. New current production tubes with end caps, 2 in original factory boxes, one re-boxed.
R6233-04
3
NEW
$225
each
6291

dumont 6291

DUMONT
Dumont Photomultiplier (top sensing)
see perfect end port HERE.
Also marked 1497EM.
1
NEW
$50
each
6291

Dumont 6291

DUMONT
Dumont Photomultiplier (top sensing)
see perfect end port HERE.
As received, new but loose, no box.
1
NEW
$40
each
XP6302
XP6302

CLICK for bigger PIC!
CLICK for bigger PIC!
Philips

XP6302
End viewing 3 inch advanced ultra-compact multi-stage tube, factory new, with individual test data, boxed.

Just arrived!

3
NEW
$169
each
6467

Dumont 6467

DUMONT
Dumont Photomultiplier (top sensing)
see perfect end port HERE protected with foil cap. Various mil-packaging boxes.
1
NEW
$65
each
H6534SEL, CLICK for bigger PIC!
CLICK for bigger PIC!


H6534SEL

CLICK to Visit Hamamatsu for specs.


H6534SEL
Hamamatsu High performance, side viewing PMT with integral magnetic and light shield and lab housing. Appears to have DC:DC HV converter and bias string internally, presumably driven from low voltage DC (12-15V), but have not found the details yet. In fitted light tight case.
1
NEW
$225
each
6570

CLICK for bigger PIC!
CLICK for bigger PIC!
RCA
UsedRCA Mil-spec gas photodiode, S-1 response photodetector in 4 pin plug in format, runs up to 90VDC. Used, but looks very good, reboxed. Outline and terminal connections sim. to 1P29, but ruggedized for reduced microphonics.

SORRY, SOLD
$30
each
6655A

RCA 6655A

RCA
RCA Large Window Photomultiplier (top sensing)
see perfect end port HERE. 10-stage tube, with S-11 response, special window glass.
SORRY, SOLD
NEW
$120
each
7102
RCA
RCA High performance low current, 10 stage S-1 response, 1 1/4 inch end-viewing photomultiplier tube, factory new, factory box with torn flap and original data sheet.

Just 1
NEW
$130
each
7117
RCA
RCA High performance low current, 9 stage S-4 response, side-viewing photomultiplier tubes, factory new, factory boxes.

Just 2
NEW
$75
each
THORN/EMI 9106B03
THORN/EMI 9106B03
9106B03
THORN/EMI
28mm End Window PMT tube, end view 28mm tube, 14 pin glass base. New tube, over-all light shield, still with factory end cap, re-boxed.
SORRY, SOLD
NEW
$125
each
EMI 9558 QC

EMI
2 Inch End Window PMT tube, in original factory foam lined box. Beautiful tube, perfect condition.
SORRY, SOLD
NEW
$95
each
EMI 9635QB/5

EMI
Used PMT tube, as received.
1
$75
each
EMI PMT, Click for bigger PIC!
Click for bigger PIC!

EMI 9638KB

EMI
2 Inch End Window PMT tubes, some complete with factory tube test sheets, still in original factory foam lined box. Beautiful tubes, perfect condition. NSN: 5960-00-000-1266.
Last 4
NEW
$95
each
EMI 9659QB

EMI
2 Inch End Window PMT tubes, still in original factory foam lined box. Beautiful tubes, perfect condition.
2
NEW
$95
each
EMI 9661B

EMI
Side ViewWindow PMT tube, complete with factory tube test sheet, still in original bag. Looks like 931VA/1P28 with blue base. Beautiful tube, perfect condition.
1
NEW
$95
each
EMI 9781 + shield

EMI
Used PMT tube, as received, complete with shield.
1
$85
each
Thorn/EMI 9781B, CLICK for bigger PIC!
CLICK for bigger PIC!


THORN/EMI 9781B

Thorn/EMI 9781B

EMI
New, factory boxed side viewing PMT tube, complete with INDIVIDUAL TEST DATA. Beautiful tubes, perfect condition.
SORRY, SOLD
NEW
$125
each
Thorn-9791 KA

THORN/EMI 9791 KA
9791KA

Thorn-9791 KA

Thorn-9791 KA

EMI
Massive 5 Inch End Window PMT tube, still in original factory foam lined box, and protective bag. Beautiful tube, perfect condition.
SORRY, SOLD
NEW
$195
each
EMI 9815KB side view
EMI 9815KB end view
EMI 9815KB
9815 KB

EMI 9815KB

EMI EMI
2 Inch End Window PMT tube, with original factory data. Appears to have a special end lens attached, plus over-all light shield. Has an unusual large diameter, 20 pin keyed base. Unused tubes, dark stored and re-boxed.
3
NEW
$195
each
EMI 9829QA

EMI
Used PMT tube, as received.
SORRY, SOLD
$95
each
CLICK for bigger PIC!
CLICK for bigger PIC!

THORN/EMI 9903KA
THORN/EMI 9903KA Front

EMI
1 1/4 inch End Window PMT tube, with 12 pin keyed base. New old OEM stock that was used for brief testing, re-boxed.
1
$100
each
CLICK for bigger PIC!
CLICK for bigger PIC!

THORN/EMI 9903KB
THORN/EMI 9903KB Front

EMI
1 1/4 inch End Window PMT tube, with 12 pin keyed base. New old OEM stock, re-boxed.
2
NEW
$125
each
C70132
RCA
RCA
Rounded Window (1.5 inch) Photomultiplier (top sensing)
Very compact tube with flying leads, mated to a socket, probably a custom assembly. Perfect end port, hygroscopic base. New, factory boxed tube. Has individual tube test data sheet.
Just 1
NEW
$110
each
S83020FD1

CLICK for bigger PIC!
CLICK for bigger PIC!


S83020FD1
End viewing 2.5 inch hexagonal multi-stage tube, brand new, very good condition, complete with data on each tube, and rear bias network. For a model 2011 scintillator.
Excellent tube for experimentation, all prebiased and ready to use.
SORRY, SOLD
NEW
$95
each
LOTS MORE TUBES TO COME !
CLICK TO VISIT
USEFUL VACUUM TUBE SITES
Looking for AUDIO Tubes we don't have? Try here:
CLICK to visit the tube store!
- THE TUBE STORE -
ALL KINDS OF PREMIUM AUDIO TUBES, MATCHED SETS AND RELATED INFO
Search for tube info!
LINK
Frank's tube info search site. Vast index of tube data of all kinds, INCLUDING NIXIES, CRTs and PMTs!
Searchable tube data
Search for tube info!
LINK
Duncan Amp's tube info search site.
Searchable tube data
Visit!Visit
Åke's Tube Site
Fascinating tube information and pictures, very unique data!


IMPORTANT !
Graphical logos and trademarks are the property of their respective owners, including Tektronix, Fluke, RCA, TI, GE, General Radio and Hewlett Packard, and are used here merely to unambiguously identify the products. Sphere Research IS NOT a factory authorized distributor for any of the product lines indicated.
Return to Sphere's Test Equipment Home Page Return to Sphere's Test Equipment Home Page
E-mail us Want something? Click here to e-mail us!
We accept Visa / MC for fast order processing.
Click to learn more about Godzilla GraphicsYou are visitor number 100999.
Site Design & contents copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2013
by Walter Shawlee 2 & the ad hoc Godzilla Graphics Group.

All rights reserved.