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

European / Alphabetic and CV Vacuum Tubes + Links

Welcome To Sphere Research's Canadian Test Equipment & Parts Site!
This Section Updated Weekly Click REFRESH on your browser if pages seem unchanged Visit our amazing document server. Everything from Quotes and SciFi to Ethics & Business. Want something? Click here to e-mail us! Our FAQ !! Answers to all those tricky questions... Very Useful Engineering Links Color codes to datasheets...	Please Note: All Prices are in US$	Sphere Research Corporation 3394 Sunnyside Rd. West Kelowna, BC, Canada V1Z 2V4 Phone: +1 (250) 769-1834 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 Foot!

Now OPEN, our PRODUCTION PARTS WAREHOUSE Literally millions of parts available at great prices!

CLICK HERE To Visit The Parts Section

I'm in a HURRY! Show me all the:

Oscilloscopes

Meters

Power Supplies

Counters

Test Equipment Navigation ReturnHome Go to Sphere's FAQ Page Used Tektronix Equipment Equipment Cross-Ref Data CRT Data Parts Used HP Equipment Equipment Cross-Ref Data CRT Data Parts PHILIPS FLUKE Used Fluke + Philips Equipment Equipment Parts CRT Data Used General Radio (Genrad) Equipment Equipment Lots of NEW Arrivals! Assorted HOT Deals! Optics Used Optics Equipment Power Supplies RF/Microwave Parts Vacuum Tubes Nixie Tubes CRT's Slide Rules ! Marketplace Navigation Go to Sphere's FAQ Page

EUROPEAN/CV VACUUM TUBES EUROPEAN/CV VACUUM TUBES 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, Email your order to Susan HERE. 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 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. CONDITION: To answer your questions, YES, we completely check and inspect all used equipment, and do not offer any we feel is substandard. That gear is normally scrapped, broken down for parts, or may get offered as-is in the HOT DEALS section, with the unit's condition clearly identified. If there are any marks or detracting features, we clearly state them in the listing. Before shipment, we burn in the equipment for 24 hrs. again and re-check to be sure it is good prior to shipment. The CATALOG will appear below shortly! Don't forget these illustrated sections take a few seconds to load, but they are worth the wait!

---

Hundreds of new, hard to find tubes just added, including many unusual photodetectors, gas regulators, RF and audio tubes! We have HUNDREDS not yet listed, including premium mil tubes, audio tubes, RF Power tubes, communciations tubes, Tek repair stock, nuvistors, compactrons, and much more. Just email if you have a request!

---

TUBES

These are the Vacuum Tubes we have on hand, new, factory boxed. NEED CRTs or Nixies? CLICK HERE! MOST ARE NEW TUBES IN FRESH LOOKING BOXES, marked , REFERRED TO AS 'NOS', MEANING NEW OLD STOCK, or NIB, NEW IN BOX. If the boxes are poor, or they are new reboxed tubes, they are marked and may have worn looking boxes or storage damage, although the tubes are fine. If you are working on HP or Tek older generation gear, you may need some of these. We also have a few used tubes from time to time (salvaged from working gear), marked on the list as if untested, and if tested. NOTE: European LETTER TUBES arranged in alphabetical order, JEDEC/EIA/USA tubes in numerical order.

Can't find the tubes you wanted here? CLICK HERE to see EIA/USA/JAN Numbered Tubes

Can't find the tubes you wanted here? CLICK HERE to see Western Electric / Northern Electric Tubes

Just Arrived, Large Stock of NEW BOXED Euro Tubes!

See listings below!

Looking for European or CV series tube data? CLICK HERE!

CATALOG:JUST SCROLL DOWN TO SEE EVERYTHING !

---

EUROPEAN / ALPHABETIC TUBES

---

New Page Just Opened!
Tube Circuit Parts

Tube Circuit Parts CLICK to see!

We now have a wide range of higher voltage film and electrolytic capacitors, perfect for tube circuits! These are getting very hard to find, here is big stock of new parts, perfect for building your own amps from scratch, for guitar amp repairs, or general higher voltage use.

E-mail us

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

TUBE NUMBER	MANUFACTURER/ NOTES	QUANTITY	UNIT PRICE
NL-C1K / 6014	National New, Factory boxed. High power gas thyratrons, very hard to source now. Dual marked with internal and industrial numbers. NL is a prefix that just means made by National.	3	$195 each
EL-C1K	EL (Electrons Co.) New, Factory boxed. High power gas thyratrons, very hard to source now. EL is just a prefix that means made by Electrons Co.	1	$195 each
EL-C1J/A	EL (Electrons Co.) New, Factory boxed. High power gas thyratrons, very hard to source now, the J suffix is rare. EL is just a prefix that means made by Electrons Co.	2	$125 each
C3JA - C3J/A 5684	HYTRON Hytron high powered gas filled thyraton. Factory boxed (worn boxes), 4 pin base. Gas tested good.	2	$95 Ea.
NL-C3J/L	National high powered gas filled thyraton. New boxed with factory paperwork, spade terminal base. Gas tested good.	1	$125 Ea.
CV6 E1148	UK Military tubes, white boxed untested, based on E1148 Triode. Just arrived!	SORRY, SOLD	$19 Ea.
CV136	UK Military tubes, white boxed untested, HF Pentode. Just arrived!	29	$8 Ea.
CV173	UK Military tubes, white boxed untested, metal, loktal base, based on DDR2 Pentode. Just arrived!	1	$12 Ea.
CV273	UK Military tubes, white boxed, untested, VHF triode. Just arrived!	SORRY, SOLD	$15 Ea.
G.E.C. CV286	G.E.C., EEV European 7-pin miniature tubes New factory boxed and mil boxed, untested. Just arrived!	5	$8 Ea.
CV287	UK Military tubes, white boxed untested, 150V gas regulator. GTR150M/S. Just arrived!	8	$7 Ea.
Heintz and Kaufman CV416	HK European 7-pin miniature tubes, marked Gammatron. New factory boxed, untested. Just arrived!	2	$8 Ea.
CV417	UK Military tubes, white boxed untested, EC91 Triode. Just arrived!	1	$8 Ea.
CV426	Mullard UK Military tubes, white boxed, untested, EY51 HV Rectifier. Just arrived!	6	$6 Ea.
English Electric Valve CV449	EEV European miniature tubes, marked as equivalent to 5651. New factory boxed, untested. Just arrived!	2	$6 Ea.
CV785	Philips UK Military tubes, white boxed, untested, 1T4 HF Pentode. Just arrived!	2	$12 Ea.
CV858	Mullard UK Military tubes, white boxed, untested, ECC91 Double Triode. Just arrived!	2	$12 Ea.
CV1065 10E/11446 VR65	UK Military tubes, white boxed untested, Pentode, coated octal tube. Just arrived!	2	$19 Ea.
CV1091 VR91 EF50 10E/92	UK Military tubes, white boxed untested, several variations, metal loktal based tubes, also EF50 and VR91, 10E/92. Just arrived!	6	$12 Ea.
CV1092	Philips, UK Military tubes, white boxed untested, VR92/EA50 diode. Just arrived!	SORRY, SOLD	$10 Ea.
BRIMAR CV1376	Brimar European 9-pin miniature tubes, marked equivalent to EF80. New factory boxed, untested. Just arrived!	1	$10 Ea.
Mullard CV2127	Mullard European 9-pin miniature tube. White boxed, untested, may be new or used. Just arrived!	1	$5 Ea.
CV2136	BRIMAR UK Military tubes, white boxed untested, based on 6BW6. Just arrived!	3	$12 Ea.
ITT CV2209 6F33	ITT European 7-pin miniature tube. Factory boxed, untested. Marked with both numbers, Pentode. Just arrived!	2	$8 Ea.
CV2213	UK Military tubes, white boxed untested, gas regulator. Just arrived!	17	$2 Ea.
CV2218	TEONIX UK Military tubes, white boxed untested, Half-wave rectifier. Just arrived!	2	$12 Ea.
CV2289	Haltron UK Military tubes, factory boxed untested, EHT rectififer, same as U37, 1T2, CV4061, R16. Just arrived!	4	$8 Ea.
CV2296 6919	UK Military tubes, white boxed untested. Just arrived!	SORRY, SOLD	$16 Ea.
Chelmer Valve CV2453-R	Chelmer European 9-pin miniature tube, unusual molded base. Factory boxed, untested. Just arrived!	1	$8 Ea.
CV4005	UK Military tubes, white boxed untested, Full wave Rectifier. Just arrived!	1	$8 Ea.
Sylvania CV4007 5726	SYLVANIA US made 7-pin miniature tube. Factory boxed, untested. Marked with both numbers. Just arrived!	5	$8 Ea.
CV4010	European made (Lorenz) 7-pin miniature Pentode (sim. to PSQ EF95, 5654, M8100)) tube, marked selected. Factory mil-boxed, all from the same batch, 1971 date code. Just arrived!	SORRY, SOLD	$15 Ea.
5670 (2C51/396A/CV4013)	Westinghouse Premium, ruggedized (low microphonics), long life medium-mu dual triode (with internal shield at pin 5), 2C51/396A equivalent. Factory boxed new audio tubes, beautiful silver topped, large halo getter. Made in USA, exceptionally nice internal construction, capable of VHF operation. Very hard to find. PDF 5670 Tube data HERE.	8	$35 each
JAN 5670 (2C51/396A/CV4013)	GE JAN Premium, ruggedized (low microphonics), long life medium-mu dual triode (with internal shield at pin 5), 2C51/396A/CV4013 equivalent. Mil-boxed new audio tubes, beautiful silver topped, large halo getter. Made in USA, exceptionally nice internal construction, capable of VHF operation. Very hard to find. PDF 5670 Tube data HERE.	4	$39 each
JAN 5670W (2C51/396A/CV4013)	GE JAN Premium, ruggedized (low microphonics), long life medium-mu dual triode (with internal shield at pin 5), 2C51/396A/CV4013 equivalent. Mil-boxed new audio tubes, beautiful silver topped, large halo getter. Made in USA, exceptionally nice internal construction, capable of VHF operation. Very hard to find, late production. PDF 5670 Tube data HERE.	6	$39 each
CV4014	UK Military tubes, white boxed untested, reliable RF Pentode. Just arrived!	23	$7 Ea.
CV4025	European made 7-pin miniature tube. Factory boxed, untested. Just arrived!	2	$8 Ea.
CV4039 6062	European made miniature tube. UK Mil-boxed, mil version of M8096 VHF Power Pentode, untested. Just arrived!	6	$12 Ea.
CV4043	UK Military tubes, white boxed untested. Just arrived!	4	$8 Ea.
CV4048	European made miniature tube. Factory boxed, untested. Just arrived!	1	$8 Ea.
CV4052	European made 7-pin miniature tube with flying leads. Factory boxed, untested. Just arrived!	1	$8 Ea.
CV4055	UK Military tubes, white boxed untested, Pentode. Just arrived!	7	$12 Ea.
CV4057	UK Military tubes, white boxed untested, HV Rectifier. Just arrived!	4	$8 Ea.
CV4062	ITT UK-mil miniature Pentode tube. White MIL-boxed, untested. Just arrived!	2	$8 Ea.
CV4070 6AQ4	Mullard UK Military tubes, white boxed untested, 6AQ4 triode. Just arrived!	7	$8 Ea.
CV4085	GEC UK Military tubes, white boxed untested. Just arrived!	SORRY, SOLD	$8 Ea.
CV5073 6AM4	US made 9-pin miniature tube, dual marked. White boxed, untested. Just arrived!	1	$8 Ea.
CV5377	European made 7-pin miniature tube. Factory boxed, untested. Just arrived!	2	$8 Ea.
CV5817	UK Military tubes, white boxed untested. Just arrived!	11	$8 Ea.
CV6058	UK Military tubes, white boxed untested. Just arrived!	4	$19 Ea.

E-mail us

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

TUBE NUMBER	MANUFACTURER / NOTES	QUANTITY	UNIT PRICE
CLICK for bigger PIC! JAN DOD-018	Mircrowave power triode. Box also marked with Federal stock number 5960-00-106-1811. MIL boxed. Just arrived!	3	$16 Ea.
E80F	Philips European premium SQ (special Quality) power tube, GOLD PINS, made in Holland. Tested good! Used, reboxed. Just arrived!	4	$16 Ea.
E80L	Philips European premium SQ (special Quality) power tube, GOLD PINS, made in Holland. Tested good! Used, reboxed. Just arrived!	1	$16 Ea.
E81L 6686	Philips European premium SQ (special Quality) signal tubes with GOLD PINS, made in Holland. All tested good! New in factory Boxes! Just arrived!	3	$18 Ea.
E83F	Philips European premium SQ (special Quality) audio pentode power tube, GOLD PINS, made in Holland. Tested good! Used, reboxed. Just arrived!	1	$16 Ea.
E83F / 6689	Amperex New, factory boxed premium audio pentode with mesh plate, dual marked 6689/E83F. European premium SQ (Special Quality) signal tubes (10,000 hour life), GOLD PINS, made in Holland. Just arrived!	4	$22 Ea.
E92CC	Philips European premium SQ (special Quality) signal tubes, made in Holland. All tested good! New in factory Boxes! Just arrived!	12	$12 Ea.
E99F	Valvo European signal tubes, unboxed, but new, made in Germany. Just arrived!	SORRY, SOLD	$10 Ea.
CLICK for bigger PIC! E130L / 7534	National Popular High Power Pentode. Hard to find. 2 older style National boxes, 4 newer style National boxes.	6 Pcs.	$33 Ea.
EA76	European made 5-pin microminiature tube with flying leads. Factory boxed, untested. Just arrived!	SORRY, SOLD	$5 Ea.
COSSOR EB91 6AL5	European made 7-pin miniature tube. Factory boxed, untested. SEE ALSO 6AL5, we do have stock of these!	SORRY, SOLD	$8 Ea.
EC92 6BA4	National Dual marked, factory boxed tubes.	4 Pcs.	$9 Ea.
ECC81 / 12AT7	Amperex factory boxed, new tubes! Popular premium audio dual triode. Dual marked.	3	$14 each
ECC82	Mullard European made 9-pin miniature tube. Factory boxed, untested. Just arrived!	SORRY, SOLD	$12 Ea.
CLICK for bigger PIC! ECC86 / 6GM8 Tektronix 157-0068-00	Amperex Frame grid, dual triode for very low plate voltages, selected and tested Tektronix tubes. Triple marked, made in Holland. Tektronix factory boxed.	SORRY, SOLD	$15 Ea.
CLICK for bigger PIC! ECC189 / 6ES8	Amperex RF Dual Triode. Dual marked factory boxed tubes, made in Holland, Bugle Boy logos.	3	$15 Ea.
ECC189 / 6ES8	GE RF Dual Triode. Dual marked factory boxed tubes, made in Great Britain.	3	$15 Ea.
ECF80 - 6BL8	National Tested These are made ih Holland by Philips for National, very nice tubes.	7 Pcs.	$7 Ea.
ECF201	Telefunken Triode-Pentode, European tubes, made in Germany. New, classic Telefunken boxing. Just arrived!	20	$12 Ea.
ECF201 / 6U9	RCA Triode/Pentode, late factory boxed, dual marked. Marked Made in Holland, probably made by Philips.	5	$15 each
ECH81	Telefunken European tubes, made in Germany. New, classic Telefunken boxing. Just arrived!	SORRY, SOLD	$12 Ea.
ECH83 / 6DS8	Amperex New, boxed tubes, dual marked, factory yellow/green boxed.	10	$8 Ea.
Zaerix ECL80 6AB8	European made 9-pin miniature tube. Factory boxed, untested. Just arrived!	1	$8 Ea.
ECL82	Philips Tested good! Used, reboxed. Just arrived!	1	$10 Ea.
ECL84/6DX8	RCA New, boxed tubes, dual marked, also GE and Raytheon. Made in Great Britain	8	$8 Ea.
ECL84 / 6DX8	Amperex Triode, Output Pentode combination. Dual marked factory boxed tubes, made in Great Britain.	3	$15 Ea.
ECL86/6GW8	RCA and GE New, boxed tubes, dual marked. Made in Holland	SORRY, SOLD	$10 Ea.
EF37A	European made tube, very unusual appearance, octal tube with plate cap, looks like ME1400, arrived in same batch, see below. Factory boxed, unable to test. Just arrived!	SORRY, SOLD	$12 Ea.
EF40	European made tubes, selected prime tubes for Beckamn, have both Beckman and EF40 numbers, unable to test. Just arrived!	SORRY, SOLD	$14 Ea.
Raytheon EF80 6BX6	Japanese made 9-pin miniature tube, dual marked. Factory boxed, Just arrived!	5	$11 Ea.
EF80 6BX6	GE Dual marked tubes.	10	$11 Ea.
EF83	Mullard European made 9-pin miniature tube. Factory boxed, untested. Just arrived!	1	$12 Ea.
Tungsram EF85	European made 9-pin miniature tube. Factory boxed, untested. Just arrived!	1	$12 Ea.
EF85	Philips Miniwatt New, factory boxed. Just arrived!	SORRY, SOLD	$10 Ea.
EF86	Philips Tested good! Used, reboxed. Just arrived!	SORRY, SOLD	$10 Ea.
EF91 / 6AM6	Amperex New factory boxed tubes, AF-RF Pentode.	2	$15 each
EF91 CV138 6AM6	Mullard European made 7-pin miniature tube. Factory boxed, untested. Also one Brimar and Tronix tube, all factory boxed.	10	$15 Ea.
EF92 CV131	Mullard European made tubes, all factory boxed. Just arrived!	SORRY, SOLD	$10 Ea.
EF183/6EH7	RCA New, boxed tube, dual marked, IF Pentode. Made in Germany, has mesh plate.	1	$10 Ea.
EF800	International C Servicemaster New boxed, made in Great Britain.	4	$12 Ea.
EF183	Mullard European made 9-pin miniature tube. Factory boxed, untested. Just arrived!	2	$12 Ea.
EF183/6EH7	RCA New factory boxed tubes. Imported tubes, marked made in Holland, mesh plate, probably Philips.	5 Pcs.	$10 Ea.
EF184/6EJ7	GE New, boxed tube, dual marked. Made in Great Britain	1	$10 Ea.
EF800	National New, factory boxed tubes Made in England	10	$12 Ea.
EH90	Mullard European made 7-pin miniature tube. Factory boxed, untested. Just arrived!	1	$8 Ea.
Electro-Harmonix CLICK for bigger PIC! EL34 (6CA7)	Electro-Harmonix Top rated, very high quality beam power tetrode tubes. These EL34's are the classic thin bottle design, very rugged internally, just as the orignal European parts were made. These are all 1999 date codes, and factory matched, we have pairs and quads in stock. Sold ONLY in pairs or quads. Factory boxed, and perfect. Same as US 6CA7 or KT77 tubes.	Have 12	$59/pair
Various EL34 (6CA7)	Various Makers including JJ High quality beam power tetrode tubes. These EL34's are the classic thin bottle design, low time used tubes, may be able to supply as matched pairs, check current availability. Same as US 6CA7 or KT77 tubes.	Have 6	$22 ea.
Dario EL36	Dario Popular high powered audio driver tubes. Used, but tested, all excellent (including life test), and closely matched.	3	$29 Ea.
EL81 6CJ6	Siemens European made 9-pin miniature power tube. Factory boxed, untested. Just arrived!	6	$19 Ea.
EL83 6CK6	Siemens European made 9-pin miniature power tube. Factory boxed, untested. Just arrived!	2	$12 Ea.
EL84 6BQ5	Tung-Sol NEW Tung-Sol Russian re-issue miniature 9-pin pentode power output tube, excellent quality, dual marked. Factory boxed and matched into pairs. Just arrived!	2 Pairs	$49/Pair
EL86 6CW5	SYLVANIA New boxed, beam power Pentode, dual marked.	3	$15 Ea.
EL91	Mullard European made 7-pin miniature tube. Factory boxed, untested. Just arrived!	7	$12 Ea.
EL91	Mullard European made 6AM5 miniature tube. Factory boxed. Just arrived!	5	$12 Ea.
EL95	Amperex German made miniature tube, 6DL5 equivalent. Factory boxed. Just arrived!	5	$12 Ea.

E-mail us

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

TUBE NUMBER	MANUFACTURER / NOTES	QUANTITY	UNIT PRICE
EM80/6BR5 6E1n Cathode Ray Eye Tube	Reflector Russian Reflector made tubes, 6E1n type, same as EM80/6BR5. New Reflector factory boxed (not shown). Very hard to find European Eye tube (shell shaped tuning indicator). Pic is Amperex tube, but it looks identical.	7	$19 Ea.
EM81 / 6DA5	GE Tuning Indicator cathode display tube. Dual marked factory boxed tubes, made in Holland. All are new and in excellent condition, tubes marked made in Holland, probably Philips original manufacture.	5	$26 Ea.
EM84/6FG6 Cathode Ray Eye Tube	ICC Servicemaster Very hard to find European eye tube (side bar tuning indicator), very popular in high end table radios like Grundig. New, factory boxed tubes from ICC. Every tube fully tested, excellent brightness.	10	$25 Ea.
EM84/6FG6 Cathode Ray Eye Tube	RCA/Amperex Very hard to find European eye tube (side bar tuning indicator), very popular in high end table radios like Grundig. New, factory boxed tube from RCA and Amperex, but the RCA tube marked made in Holland, so the tube is really made by Philips/Amperex for RCA. Fully tested, excellent brightness.	2	$25 Ea.
EM84/6FG6 6E3n Cathode Ray Eye Tube	Russian Reflector Very hard to find European eye tube (side bar tuning indicator), very popular in high end table radios like Grundig. New, Reflector factory boxed and bulk tubes from the Reflector factory in Russian, marked 6E3n, equivalent to EM84. Fully tested, excellent brightness. Please note that we have historically had real problems with these specific Russian tubes, with a 50% reject rate during our testing. We have thoroughly pulsed and tested these tubes repeatedly, and are sure these are good, with full brightness, but it remains a concern due to the many rejects. These are supplied as-is, due to these problems.	7	$12 Ea.
BRIMAR EY83	Brimar European made 9-pin miniature HV tube. Factory boxed, untested. Just arrived!	1	$8 Ea.
EY84	Brimar European made 9-pin miniature HV tube. Factory boxed, untested. Just arrived!	2	$8 Ea.
EY86	Haltron European made 9-pin miniature HV tube. Factory boxed, untested. Just arrived!	2	$8 Ea.
EY88/6AL3	RCA New, boxed tubes, dual marked. Made in Holland	SORRY, SOLD	$10 Ea.
EZ80	Philips New, factory boxed. Just arrived!	SORRY, SOLD	$12 Ea.
EZ80	Philips Tested good! Used, reboxed. Just arrived!	1	$10 Ea.
EZ81	Philips Tested good! Used, reboxed. Just arrived!	SORRY, SOLD	$10 Ea.

E-mail us

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

TUBE NUMBER	MANUFACTURER / NOTES	QUANTITY	UNIT PRICE
CLICK for bigger PIC! R1115 R-1115	Sylvania Very Unusual Sylvania tube which appears to be a filament suspended in an unsealed glass tube. If it were a triode it would be a vacuum gauge, but I have no idea what this actually does. Two leads (green) on one side, open glass tube on the other. Over-all length (less leads) is 7 inches. Wrapped in factory rolls, old 60's stock.	6	$25 Ea.
R1130B	Sylvania Unusual GLOW MODULATOR tube, gas filled, new, factory boxed tubes. Octal base with only 2 pins installed. 2nd Pic shows gas excited by HV field.	4	$29 Ea.
Tesla RE025XA = 4CX250B	Tesla 250W RF Radial Beam Power Tetrode tubes, new, bagged. requires forced air cooling. Silver plated tubes. Full Tesla multi-language data sheet is HERE in PDF form. Very nice Czech made tubes, highly rated and very popular in Europe for radio amateurs. We have some NEW SOCKETS ($20) for these, and some USED SOCKETS ($10) available.	Have 2	$75 Ea.

E-mail us

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

TUBE NUMBER	MANUFACTURER / NOTES	QUANTITY	UNIT PRICE
ZA1000	Mullard New, miniature neon gas voltage regulator tubes (3 leads). Often used in HV bias strings like CRTs or to protect inputs of amplifiers. Made in Holland	SORRY, SOLD	$3 Ea.

CLICK TO VISIT	USEFUL VACUUM TUBE SITES	WHAT THEY HAVE
Search for tube info!	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!	Duncan Amp's tube info search site.	Searchable tube data
	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 E-mail us Want something? Click here to e-mail us! We accept Visa / MC for fast order processing.
	You are visitor number . Site Design & contents copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2013, 2014, 2016, 2018 by Walter Shawlee 2 & the ad hoc Godzilla Graphics Group. All rights reserved.