http://www.transistor-repairs.com/zenithtransistorreference.html ZENITH TRANSISTOR RADIO PARTS see also http://www.d8apro.com/ - datapro, they own Heathkit t/m now http://www.nteinc.com/ NTE cross reference online http://www.semiconductormuseum.com/Transistors/Zenith/Andrejasich/Andrejasich_Page8.htm http://www.talonix.com/shop/zenithparts.htm http://www.videokarma.org/showthread.php?t=263085 Source is Zenith Transistor spec guide 902-656, dtd Feb 1970. http://www.transistor-repairs.com/ 121-00 to 121-199 used in 1960's Zenith radios NTE POPULAR GERMANIUM TRANSISTORS 100 PNP Osc. Mixer 101 NPN Osc. Mixer 102 PNP Audio Output 102A PNP Driver, Output 103A NPN Driver, Output 124 NPN Si, HV Power Output 126 PNP RF-IF Amp 160 PNP RF-IF Amp ZENITH TRANSISTOR PART NUMBERS CROSS REFERENCE ZENITH EIA NTE P/N TYPE TYPE TYPE 121-6 NPN 2N94 NTE103A 121-7 NPN 2N35 NTE103A 121-8 PNP 2N35 NTE103A 121-9 PNP 2N112 NTE126 121-10 PNP 2N111 NTE100 121-11 PNP CK725 NTE102 121-12 PNP CK725 NTE102 121-14 PNP 2N112 NTE126 121-15 NPN R-12 NTE101 121-16 NPN R-41 NTE101 121-17 NPN R-14 NTE101 121-18 PNP R-15 NTE124 121-19 PNP R-16 NTE102A Ge 121-21 NPN 2N193 NTE103A 121-22 NPN 2N194 NTE103A 121-24 NPN 2N168A NTE101 121-25 NPN 2N168A NTE101 121-26 NPN 2N168 NTE101 121-27 PNP 2N190 NTE102 121-33 NPN 2N169A NTE101 121-34 PNP 2N186A NTE102A 121-44 PNP 2N370 NTE126 Ge RF 121-45 2N139 121-46 PNP 2N109 NTE102A 121-47 PNP 2N270 NTE102A 121-48 PNP 2N371 NTE126 Ge RF Osc 121-49 2N372 121-50 NPN 2N253 NTE101 121-51 NPN 2N254 NTE101 121-52 PNP R-120 NTE102A 121-53 PNP R-119 NTE100 121-54 PNP 2N252 NTE126 121-59 NPN 2N214 NTE103A 121-60 NPN 2N213 NTE103A 121-61 PNP 2N407 NTE102A 121-62 PNP 2N411 NTE126 121-63 PNP 2N247 NTE126 121-64 PNP 2N408 NTE102A 121-65 PNP 2N409 NTE126 121-67 PNP 2N308 NTE100 121-68 PNP R-152 NTE102A 121-69 PNP R-164 NTE102A 121-70 NPN 2N216 NTE103A 121-71 NPN 2N216 NTE103A 121-72 PNP R-163 NTE100 121-73 PNP 2N409 NTE126 121-74 PNP 2N409 NTE126 121-75 PNP 2N139 NTE126 121-76 PNP 2N139 NTE126 121-78 PNP 2N544 NTE126 121-79 PNP 2N413A NTE100 121-80 PNP 2N413A NTE100 121-81 PNP 2N383 NTE102 121-82 PNP 2N413 NTE100 121-83 PNP 2N414 NTE100 121-84 PNP 2N383 NTE102 121-91 PNP 2N483 NTE100 121-92 PNP 2N485 NTE106 121-93 PNP 2N483 NTE100 121-94 PNP 2N482 NTE100 121-95 PNP 2N362 NTE102 121-96 PNP 2N632 NTE102 121-100 NPN S-028 NTE101 121-101 PNP 2N544 NTE126 121-102 PNP 2N309 NTE100 121-103 PNP 2N411 NTE126 121-104 PNP 2N409 NTE126 121-105 PNP 2N409 NTE126 121-106 PNP 2N407 NTE102A 121-107 PNP 2N407 NTE102A 121-113 PNP 2N309 NTE100 121-117 PNP 2N109 NTE102A 121-119 PNP R-258 NTE100 121-120 PNP S-119 NTE519 121-134 PNP 2N1177 NTE160 121-135 PNP 2N1178 NTE160 121-136 PNP 2N1179 NTE160 121-137 PNP 2N1180 NTE126 121-138 PNP 2N1180 NTE126 121-139 PNP 2N1180 NTE126 121-145 PNP 2N1108 NTE126 121-146 PNP 2N1110 NTE126 121-147 PNP 2N1111 NTE126 121-148 PNP 2N406 NTE102A 121-150 PNP 2N1631 NTE126 121-151 PNP R-509 ****** 121-152 PNP R-497 NTE160 121-153 PNP R-375 ****** 121-154 PNP R-510 ****** 121-160 PNP R-497A NTE160 121-161 PNP 2N410 NTE126 121-162 PNP 2N410 NTE126 121-163 PNP 2N408J NTE102A 121-164 PNP 2N408 NTE102A 121-179 PNP 2N1527 NTE160 121-180 PNP 2N1525 NTE160 121-181 PNP 2N1525 NTE160 121-184 PNP 2N1374 NTE102A 121-185 PNP 2N1525 NTE160 121-192 PNP 2N407J NTE102A 121-193 PNP 3517 ****** Other sources 121-228 2N1742 121-230 2N1745 121-309 2N2429 121-310 2N2428 121-350 PNP Ge AM oscillator circuit 121-352 PNP Ge IF 121-366 NPN Transistor 121-413 2N3588 121-414 2N3588 121-415 2N3588 121-425 2N2431 121-426 2N3588 121-427 2N990 121-429 2N3588 121-433 NPN NTE 123 AP (NPN SI) 121-447 NPN Transistor 121-470 NPN Transistor 121-490 PNP Transistor 121-499 NPN Transistor 121-499-01 NPN Transistor 121-500 NPN Transistor 121-501 NPN Transistor 121-503 121-522 NPN Transistor 121-524 121-551 NPN Transistor 121-587 NPN Transistor 121-613 NPN NTE 108 (OSC,NPN,SILIC.) 121-676 NPN Transistor 121-695 NPN Transistor 121-699 PNP Transistor 121-713 NPN Transistor 121-722 NPN Transistor 121-735 NPN Transistor 121-743 NPN Transistor 121-744 NPN Transistor 121-755 NPN Transistor 121-758 NPN Transistor 121-767 NPN Transistor 121-773 NPN Transistor 121-776 NPN Transistor 121-777 NPN Transistor 121-787 --- NTE 222 (RF AMP, DUAL GATE MOSFET) 121-850 NPN NTE 123 AP (NPN SILICON) 121-858 --- NTE 132 (FET N-CH) 121-950 NPN NTE 229 121-966 NPN NTE 152 NPN comp NTE153 PNP, Si audio power amp, switch 121-967 NPN NTE 196 (NPN) comp NTE197 PNP, Si audio pwr amp, switch 121-975 NPN NTE 123 AP (NPN SILICON) DIODES 103-142-1 NTE 177 103-142 NTE 177 103-178-02 NTE 177 103-178-02 A NTE 177 103-47 NTE 614 103-23-01 NTE 109 103-90 NTE 110MP 103-23 NTE 109 103-254-01 NTE 116 Zenith transistors in box 1 each, only a few of each probably all silicon 921-32B NPN 921-39B NPN 921-52B NPN 921-56B NPN UHF 921-58B NPN UHF 921-90B (2) PNP 921-91B 921-97B 921-108B 921-120B (3) 921-123B 921-125B 921-130B (3) 921-152B (2) 921-192B (3) 921-205B 921-206B 921-217B 921-233B 921-236B 921-245B 921-254B PNP 921-363 921-371 921-390 921-759X 121-759X 800-754 Zenith, plastic & metal gears --------------------- 801-400 pulley 834-50 metal worm gear 834-51 gear 834-76 gear 834-77 gear 834-118 gear 861-234 disk assem 861-494 flat toothed 861-491 idler 861-522 clutch 861-579 reel