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HP / Agilent Service and Repair Parts and Cross Reference Information
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  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!

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HP / Agilent Service and Repair Parts and Cross Reference Information

Component Data, Links to useful web resources, and a Directory of available parts on our site.
Hewlett-Packard  1820 series parts  Hewlett-Packard
go right to the catalog! Skip the INTRO, Go RIGHT to the CATALOG!

This page has links to all our HP / Agilent service and repair parts inventory. We have ICs and transistors, internal electronic parts, case and cover parts, knobs, shafts and transformers. Email if you need something we don't show.

* 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.

We accept VISA/MC or international money order

* The CATALOG will appear below shortly!
Don't forget these illustrated sections take a few seconds to load, but they are worth the wait!
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CATALOG: JUST SCROLL DOWN TO SEE EVERYTHING !down


HP DataHP to Industry Standard Semiconductor Conversion Index and Service Info
Cross-Reference data is taken from "dual marked parts" tech briefs and HP Manuals.
Use with care, believed to be correct, but may not take into account special selections or typo errors. IMPORTANT! Parts marked with an asterisk (*) were provided by other generous net-citizens, and are not from our own library or research, so use with care, as we cannot physically verify these numbers.

NOW AVAILABLE! HP Diode/Transistor massive cross reference you can download and use locally. These 15 pages cover most 1820- to 1912- series semiconductor numbers we have been able to find and confirm. These cross-references have now been converted to a single PDF file, for quick download with Adobe Acrobat.
PLEASE, DO NOT LINK TO THIS FILE!


CLICK to get the PDF fileCLICK HERE To Get The Main Index as a PDF file!
Includes 15 pages of part number conversions, transistors, ICs, diodes and rectifiers.
Just arrived, 4 more pages of older (1900) diode and (1850) transistor part numbers from an HP 1981 Bench Brief, includes many low dash-numbers not available before. PLUS a reverse 1N/2N chart This is very, very useful information, and nearly impossible to find! Download it to your machine for use, PLEASE DO NOT LINK to these images!
CLICK to see!CLICK HERE for page 1
CLICK to see!CLICK HERE for page 2
CLICK to see!CLICK HERE for page 3
CLICK to see!CLICK HERE for page 4
HP DataDownload the Master Consolidated 143 page HP Cross-Reference.
Caution, over 20Mb PDF File! Complied by AA4DF, and hosted here for your convenience. PLEASE NO NOT link to this file, download it and use it locally. This information is provided free of charge, and you are welcome to share it with others as long as it remains free of charge; you are expressly not permitted to charge for this file in any way.


In Stock HP/Agilent Repair/Service Parts now also on line! Updated regularly!
CLICK to see 1810 series parts
CLICKHP 181X/1NB/1KB Parts
Integrated Circuits

CLICK to see 1820 series parts
CLICKHP 182X-XXXX Parts
Integrated Circuits
CLICK to see 1850 series parts
CLICKHP 185X-XXXX Parts
Transistors
CLICK to see 1900 series parts
CLICKHP 19XX-XXXX Parts
Diodes/LEDS/Rectifiers
CLICK for HP passive parts
CLICKHP Passive Parts
Resistors, Capacitors, Inductors, Transformers
CLICK for HP Mechanical/Case Parts
CLICKHP Mechanical Parts
Knobs, case parts, mechanical
CLICK for HP Boards/Modules
CLICKHP Boards/Modules
PCB Assemblies/Modules

Includes HV Multipliers!


CLICK for HP CRTs
CLICKHP CRTs and Trim
CRTs, Bezels, Filters


All parts are original HP items, even if/when marked with the root number, rather than 19XX-XXXX, etc. All new parts are from ex-HP factory or service parts stock, used parts are from HP equipment, and in most cases are simply unplugged from sockets, not unsoldered, but some discrete parts can only be unsoldered. Where possible, we do a functional check on used parts, but all used items are supplied as-is.
IMPORTANT, the minimum airmail insured (Expresspost) shipping charge (regardless of parts cost) on any shipment is US$18, which will typically ship up to 1 pound. Destinations overseas are more.


Other Web Sites and Groups for hp Service and Information
Yahoo Groups, CLICK to visit!HP/Agilent Test Equipment Group on Yahoo, a great resource for sharing HP or Agilent Test Equipment information, answering questions and getting help.
Agilent manual site, CLICK to visit!Agilent's on line downloadable manual site. A wonderful, but largely unknown resource! Many incredibly useful manuals (many you see offered on ebay for a charge) come from here for free!
Agilent manual site, CLICK to visit!Agilent's on line parts search. Find out if the part you need is still available! Note that you cannot actually order from the search, you will have to call to order from them.
CLICK TO SEE!
MAKE HP MSIB CABLES!Thanks to Roberto Barrios, now you can make these wickedly hard to source cables yourself!
. A great site, with some fascinating and useful projects, really worth a look! Also a section on how to repair sticky HP instrument buttons, and Tek TM500/5000 tricks. Plus some downloadable HP, Advantest, Fluke and R+S manuals, very useful and hard to find.
Agilent manual site, CLICK to visit!Agilent's on line Application Note and Technical Paper Index. Great background information on every type of instrument! An amazing, but often overlooked resource, most is from the HP of long ago, and of excellent quality.
Agilent manual site, CLICK to visit!Agilent's on line Discussion Forum. A chance to ask questions and get information on all kinds of complex topics.
CLICK to see!hp 478A Power Meter Sensor Repair. A very handy quick reference on how to check and adjust these items from WA1MBA.
CLICK to visit!HP 141T Series Spectrum Analyzer Information. Introductory information on the 141T and 855X plug-in system components, and how to repair them, useful if you need some starting help.
CLICK to visit!HP 8410 Series Network Analyzer Information. The best resource on the web for this family of network analyzer components, by Mark Kahrs, KB2VSQ. An exceptionally rich resource, be sure you click on all the small links at the bottom of his page, that's where the best information is hidden!
CLICK to visit!For a very nice Hewlett Packard illustrated equipment page from Germany,
CLICK HERE
. It includes all kinds of commonly used items, an excellent resource. Check out the rest of the site, quite a treasure trove of information.
CLICK to visit!CLICK to visit!
KE5FX, John Miles wonderful site devoted to CRT restoration
for HP CRTs (and now Tek as well!). This page is really worth a visit if you have a bad CRT. If you can't find a spare, his technique may work for you, and there's lots of data to help you.
CLICK to Visit!
For the quintessential HP catalog and older model archive,
CLICK HERE
.

Glenn Robb's extensive web project to preserve decades of HP information. He also has quite a bit of BOONTON data on line. Really worth a visit if you have any historical interest in HP products. He has HP Journals, Catalogs (right from the very first one), App Notes, Links and a chance to volunteer to help preserve and scan this useful information.
E-mail us Know of a useful HP / Agilent Test Equipment service information site?
Please E-mail us with the details, we will add it in!



Service Topic, Identifying HP Semiconductor Parts
Many HP parts have somewhat cryptic markings, and a bit of help is needed to understand their system. Generally, they used "house numbered" parts for all semiconductors, not conventional 1N/2N numbers. This is not always true, but where theere was any parts volume it was marked with the HP designation. There are many reasons for this, first, many unique vendor part numbers are equal to a single HP design deignation, so it is far less confusing for their documentation and parts control to do it this way. Second, it is harder for competitors to reverse engineer this product if no parts data is obvious. Last, it ties the service of the instrument back to the maker, so it provides an ongoing revenue stream over the life of the instrument.

There is a parts prefix (4 digits) that identifies the KIND of component it is, resistor, transistor, pot, etc., and a 4 digit suffix that uniquely identifies THAT part within the group.

A TRANSISTOR normally begins 185X, where X is any number from 0-9. Early parts had only a 3 digit suffix, so you have to add in the leading zeroes to get the current full number. ICs begin 182X, where X is any number from 0-9, again followed by the specific part suffix.
Real Parts Examples:
Full Marking
1850-0168
Unambiguous Full Marking, 1850-0168.
Abbreviated Marking
1854-0087
Abbreviated marking, 4-087, actually 1854-0087.
Vendor Marking
1850-0126
NO HP markings, has only the original
2N2869 vendor number.

As long as an instrument is "In Support" getting house numbered parts from HP/Agilent is not a problem, and you can be certain that any screening, selection or testing that the design requires has been done. Once support ends, life becomes much more problematic. Finding real HP spares is hard, and as time goes on, the supply inevitably vanishes of any parts that have high service failure rates, exactly the ones you want!

Once all real parts are exhausted, using cross-reference data is the only remining path for repairs. It is important to recognize that a cross-referenced part may have had some secondary testing or selection for HP, and this data serves only as a guide, and cannot be definitive for every instrument. often, the vendor parts themsleves (especially germanium parts, FETs and power parts) are no longer in production, and the supplier may no longer even exist. When this happens, the chase gets even more complicated.


On Line HP Component Cross-Reference
HP Part Number
DESCRIPTION
Equivalent Part Number
1NAnn, 1KBnn
In House Hybrids, no equivalents
no cross
1810-0076
* SIP Resistor Network, 1K8 x 8
no id number
1810-0307
RESISTOR ARRAY
316-101 (100 ohms) AB
1816-0353
* STTL
74S188N
1816-0354
* STTL
74S387N
1816-1104
* 1K ROM HP1350 Char. Gen.
no id number
1816-1105
* 1K ROM HP1350 Char. Gen.
no id number
1816-1118
* 256K ROM HP1350 Char. Gen.
no id number
1816-1119
* 256K ROM HP1350 Char. Gen.
no id number
1816-1120
* Preprogrammed for HP1350 I/O
82S126
1818-0156
* 4K DRAM, 22 pin
no id number
1818-0373B
DIGITAL IC
MK34127N MOSTEK
1818-0701
* 128 x 8 RAM, 22 pin
6810
1818-1437
MEMORY
D446C-2 NEC/AMD
1818-1611
* 2K x 8 RAM
6116
1818-1817
* ROM HP9836
MK36844
1818-1818
* ROM HP9836
MK36844
1818-3526
IC
AM9233CPC
1820-0051
* OP AMP
uA702
1820-0054
* TTL QUAD 2-IN NAND
4342=7400
1820-0055
* TTL COUNTER
7490
1820-0056
* TTL COUNTER
7492
1820-0068
* TTL GATE
7410
1820-0069
* TTL GATE
7420
1820-0070
* TTL GATE
7430
1820-0071
* TTL BUFFER
7440
1820-0072
* TTL
7450
1820-0075
* TTL FF
7473
1820-0077
* TTL DUAL D FF
4354=7474
1820-0084
* TTL
7453
1820-0085
* TTL
7460
1820-0094
* DTL
6903 (SIM 7400)
1820-0099
* TTL COUNTER
7493
1820-0125
* DUAL COMPARATOR
711
1820-0174
* TTL HEX INVERTER
7404
1820-0196
* VOLTAGE REGULATOR (TO-99)
uA723
1820-0203
*
SL8940
1820-0233
* TTL COUNTER
74193
1820-0244
* OP AMP
SL701
1820-0245
* OP AMP
SL702
1820-0256
* DTL QUAD 2-IN NAND
MC858
1820-0258
* DTL DUAL JK FF
8193
1820-0261
* TTL ONE-SHOT
74121
1820-0282
* TTL GATE
7486
1820-0294
* TTL
74164
1820-0321
* COMPARATOR (TO-99)
uA710
1820-0328
* TTL GATE
7402
1820-0348
* DTL DUAL 4-IN NAND
4506
1820-0363
* TTL
7482
1820-0364
* TTL COUNTER
7491
1820-0370
* HTTL QUAD 2-IN NAND
74H00
1820-0371
* HTTL GATE
74H10
1820-0373
* HTTL GATE
74H20
1820-0376
* HTTL BUFFER
74H40
1820-0380
* HTTL
74H53
1820-0383
* HTTL
74H60
1820-0386
* HTTL
74H71
1820-0430
* 5V REGULATOR (TO-3)
78H05 (?)
1820-0471
* TTL IC
7406
1820-0509
* RS232 DRIVER
MC1488L
1820-0511
* TTL IC
7408
1820-0513
* TTL IC
7409
1820-0514
* TTL IC
7426
1820-0535
DRIVER IC
SN55451BP
1820-0567
* DUAL VCO IC
MC4024
1820-0583
* LTTL IC
74L00
1820-0584
* LTTL IC
74L02
1820-0586
* LTTL IC
74L04
1820-0587
* LTTL IC
74L10
1820-0590
* LTTL IC
74L51
1820-0591
* LTTL IC
74L54
1820-0594
* LTTL IC
74L72
1820-0595
* LTTL IC
74L73
1820-0596
* LTTL IC
74L74
1820-0599
* LTTL IC
74L95
1820-0620
* TTL IC
74153
1820-0621
TTL
7438PC
1820-0622
* TTL IC
74151
1820-0627
* LTTL IC BCD TO DEC DECODER
93L0159
1820-0629
* STTL IC
74S112
1820-0640
* TTL IC
74150
1820-0668
* TTL IC
7407
1820-0681
STTL QUAD NAND IC
74S00N
1820-0682
STTL IC
SN74S03N
1820-0683
* STTL IC
SN74S04N
1820-0685
* STTL IC
SN74S10N
1820-0686
* STTL IC
SN74S11N
1820-0688
STTL IC
74S20N
1820-0693
* STTL IC
SN74S74N
1820-0702
* LTTL IC 1 OF 16 DECODER
93L1159
1820-0704
* TTL IC
SN74122N
1820-0706
* TTL IC 5-BIT COMPARATOR
9324
1820-0710
* TTL IC MUX
SL17315/74157
1820-0716
* TTL IC
SN74161N
1820-0744
* TTL IC
SN7497N
1820-0798
* CUSTOM 6 DECADE COUNTER IC
1820-0802
* ECL 2-in NOR
MC10102
1820-0803
* ECL triple 2-3-2 OR/NOR
MC10105
1820-0805
* ECL triple 2-in XOR/XNOR
MC10107
1820-0809
* ECL quad line receiver
MC10115
1820-0817
* ECL dual D type MS-FF
MC10131
1820-0829
* ECL 8-line multiplexer
MC10164
1820-0839
* TTL IC
SN74175N
1820-0876
* LTTL IC
74L75
1820-0980
* CMOS
CD4050AE
1820-0990
* RS-232 RECEIVER
MC1489AL
1820-1016
DRIVER IC
SN75453B
1820-1032
* TTL IC
74198
1820-1052
* ECL quad MECL to TTL translator
MC10125
1820-1072
STTL IC
74S139N
1820-1074
* TTL IC
74128
1820-1076
STTL IC
74S174N
1820-1077
* STTL IC
74S157
1820-1112
LSTTL IC
SN74LS74AN
1820-1144
LSTTL IC
74LS02N
1820-1193
* LSTTL IC
74LS197
1820-1194
* LSTTL IC
74LS193
1820-1195
LSTTL IC
74LS175N
1820-1196
LSTTL IC
SN74LS174N
1820-1197
LSTTL IC
SN74LS00N
1820-1198
LSTTL IC
SN74LS03N
1820-1199
* LSTTL IC
74LS04
1820-1200
LSTTL IC
SN74LS05N
1820-1201
* LSTTL IC
74LS08
1820-1202
LSTTL IC
74LS10N
1820-1203
* LSTTL IC
74LS11
1820-1204
* LSTTL IC
74LS20
1820-1205
* LSTTL IC
74LS21
1820-1206
LSTTL IC
SN74LS27N
1820-1207
* LSTTL IC
74LS30
1820-1208
LSTTL IC
SN74LS32N
1820-1210
LSTTL IC
SN74LS51N
1820-1211
LSTTL IC
SN74LS86AN
1820-1212
* LSTTL IC
74LS112
1820-1216
LSTTL IC
SN74LS138N
1820-1217
* LSTTL IC
74LS151
1820-1224
* ECL triple line receiver
MC10116
1820-1225
* ECL high speed dual D-type MS FF
MC10231
1820-1238
* LSTTL IC
74LS253
1820-1240
* STTL IC
74S138
1820-1244
* LSTTL IC
74LS153
1820-1245
* LSTTL IC
74LS155
1820-1255
* Interface IC
DM8096N
1820-1257
* TTL IC
74159
1820-1260
* LSTTL IC
74LS221
1820-1275
* STTL IC
74S260
1820-1280
* LSTTL IC
74LS181
1820-1281
* LSTTL IC
74LS139
1820-1282
* LSTTL IC
74LS109
1820-1283
* LSTTL IC
74LS595BN
1820-1285
* LSTTL IC
74LS54
1820-1296
* LSTTL IC
74LS295
1820-1297
* LSTTL IC
74LS266
1820-1300
* LSTTL IC
74LS195
1820-1307
* STTL IC
74S132
1820-1320
* ECL high speed triple line receiver
MC10216
1820-1322
STTL IC
74S02N
1820-1323
STTL IC
SN74S30N
1820-1348
* BAUD RATE GEN.
MM5307N
1820-1359
* ECL dual 4 to 1 multiplexer
MC10174
1820-1367
* STTL IC
74S08
1820-1411
* LSTTL IC
74LS75
1820-1415
* LSTTL IC
74LS13N
1820-1416
LSTTL IC
SN74LS14N
1820-1418
LSTTL IC
SN74LS42J
1820-1422
* LSTTL IC
74LS122
1820-1423
LSTTL IC
SN74LS123N
1820-1425
LSTTL IC
SN74LS132N
1820-1427
* LSTTL IC
74LS156
1820-1428
* LSTTL IC
74LS158
1820-1433
* LSTTL IC
74LS164
1820-1435
LSTTL IC
SN74LS669N
1820-1437
LSTTL IC
SN74LS221N
1820-1438
* LSTTL IC
SN74LS257BN
1820-1439
* LSTTL IC
74LS258
1820-1440
LSTTL IC
SN74LS279N
1820-1441
* LSTTL IC
74LS283
1820-1442
* LSTTL IC
74LS290
1820-1443
LSTTL IC
SN74LS293N
1820-1444
LSTTL IC
SN74LS298N
1820-1447
* LSTTL IC
74LS670
1820-1449
* STTL IC
74S32
1820-1451
* STTL IC
74S38
1820-1453
* STTL IC
74S163
1820-1469
* LSTTL IC
74LS107
1820-1470
LSTTL IC
74LS157N
1820-1478
* LSTTL IC
74LS93
1820-1491
LSTTL IC
SN74L367AN
1820-1492
LSTTL IC
SN74LS368AN
1820-1563
* CMOS IC
74C175
1820-1568
LSTTL IC
SN74LS125AN
1820-1633
* STTL IC
74S240
1820-1641
* LSTTL IC
74LS365
1820-1645
LSTTL IC
SN74LS126AN
1820-1673
* IC
SN97558N
1820-1676
STTL IC
SN74S373N
1820-1689
* GPIB BUFFER
MC3446
1820-1701
* Microprocessor
Intel 8080A
1820-1730
LSTTL IC
SN74LS273N
1820-1746
* CMOS IC
MC14049UBCP
1820-1810
* CLOCK DRIVER
MC3460
1820-1905
* STTL IC
74S260
1820-1917
LSTTL IC
SN74LS240N
1820-1943
* STTL IC
4028
1820-1962
* CMOS IC
74LS109
1820-1989
* LSTTL IC
74LS393
1820-1997
LSTTL IC
SN74LS374N
1820-2012
LSTTL IC
SN74S373N
1820-2024
LSTTL IC
SN74LS244N
1820-2058
* DRIVER IC
MC3448
1820-2075
LSTTL IC
SN74LS245N
1820-2096
* LSTTL IC
74LS393
1820-2099
* IC
6802
1820-2102
* LSTTL IC
74LS373
1820-2111
DRIVER IC
SN75468N
1820-2117
* LINE DRIVER
9636
1820-2198
* LINE RECEIVER
9637
1820-2199
* LINE DRIVER
9638
1820-2204
* UART
6402
1820-2206
* LSTTL IC
74LS640
1820-2208
* IC
75462
1820-2268
LSTTL IC
SN74LS645N
1820-2274
INTERFACE DRIVER IC
ULN2068B
1820-2298
ZILOG CPU
Z8400A PS
1820-2483
* GPIB CONTROL BUFFER
75161
1820-2485
* GPIB DATA BUFFER
75160
1820-2488
ALSTTL IC
SN74ALS74N
1820-2520
* IC
75463
1820-2531
* IC
8250
1820-2547
* GPIB CONTROL BUFFER
75162
1820-2548
* GPIB CONTROLLER
9914
1820-2564
* HP9836 PERIPHERAL CONTROLLER
8041
1820-2577
* SERIAL CONTROLLER
6551
1820-2624
* MICROCONTROLLER
68B09
1820-2634
ALSTTL IC
SN74ALS04BN
1820-2635
ALSTTL IC
SN74ALS08N
1820-2656
ALSTTL IC
SN74ALS00AN
1820-3321
* DRIVER IC
1489
1820-3322
* DRIVER IC
1488
1821-0001
5 NPN TRANSISTORS
CA3046
1826-0064
AMPLIFIER IC
uA733
1826-0065
COMPARATOR IC
LM311P
1826-0081
* OP AMP IC
LM318
1826-0092
Dual OP AMP IC
We finally got this info!
LM1458
1826-0106
* +15V REGULATOR IC
7815
1826-0147
* +12V REGULATOR IC
7812
1826-0167
* ANALOG IC
CA3094
1826-0181
* +5V REGULATOR IC
78H05
1826-0188
* 8 BIT DAC IC
MC1408
1826-0194
* LINEAR IC
NE592
1826-0214
* -15V REGULATOR IC
7915
1826-0294
-12V REGULATOR IC
7912
1826-0355
Timer IC
LM555
1826-0357
OP AMP IC
LF357
1826-0412
DUAL COMPARATOR IC
LM311
1826-1014
+12V REGULATOR IC
78H12
1851-0017
* Germanium TRANSISTOR
2N1304
1853-0012
* TRANSISTOR
2N2904A
1853-0031
* TRANSISTOR
2N3789
1853-0036
* TRANSISTOR
2N3906
1853-0051
TRANSISTOR
2N4037
1853-0258
* PNP TRANSISTOR
2N4035
1853-0312
* PNP TRANSISTOR
2N5160
1853-0414
* TRANSISTOR
2N6423
1854-0012
TRANSISTOR
2N2904A
1854-0039
TRANSISTOR
2N3053
1854-0053
TRANSISTOR
2N2218
1854-0063
NPN Power TRANSISTOR
2N3055
1854-0244
1854-0263
NPN TRANSISTOR, 1854-0244 was replaced with 1854-0263. CENTRAL SEMICONDUCTOR 2N3019. the same JEDEC part number should work for Motorola and National Semiconductor.
2N3019
1854-0345
* NPN TRANSISTOR
2N5179
1854-0743
* NPN TRANSISTOR
2N5878
1854-0784
* NPN TRANSISTOR
2N3866A
1854-0809
* NPN TRANSISTOR
2N2369A
1854-0955
TRANSISTOR TO-5
2N5662
1858-0044
* 4 NPN TRANSISTORS
MPQ3904 (?)
1858-0047
* DARLINGTON DRIVERS
ULN2001 (?)
1858-0058
* 4 PNP TRANSISTORS
MPQ3906 (?)
1884-0019
RCA 200V TO-3 SCR, 12.5A
2N3669
1901-0511
FAST RECTIFIER
1N3889



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