Military Equipment List (Part 13)

BC-447F

Radio transmitter, 2-13.4 MHz, CW, 300 W, 115/230 VAC 50-60 Hz 1200 W, 13 tubes, 72 x 35 x 28, 871 Lbs, TM 11-827.

BC-450

Control box, Triple receiver, Command set, Part of SCR-274N.

BC-451

Control box, quadruple transmitter, Command set, Part of SCR-274N.

BC-452

Radio transmitting equipment, 1.5-7.0 MHz, 2 crystal controlled channels, AM/CW/MCW, 300 W, 115 VAC 60 Hz, 25 tubes, Part of RC-52, 29 x 24 x 72, 1250 Lbs.
Picture

BC-453

Receiver, SCR-274N "Command Set", Same as R-23, 190-550KHz, IF 85KHz, 6-tubes, VFO, 28VDC Receivers all use the same 6-tube superhet design: r.f. amplifier (12SK7), converter (12K8), two i.f. stages (two 12SK7's, or 12SK7/12SF7), detector/bfo (12SR7) one audio stages (12A6)
Schematic

BC-453A

BC-453B

BC-454

Receiver, SCR-274N "Command Set", Same as R-26, 3.0-6.0MHz, IF 1415KHz, 6-tubes, VFO, 28VDC Receivers all use the same 6-tube superhet design: r.f. amplifier (12SK7), converter (12K8), two i.f. stages (two 12SK7's, or 12SK7/12SF7), detector/bfo (12SR7) one audio stages (12A6)
Schematic

BC-454A

BC-454B

BC-455

Receiver, SCR-274N "Command Set", Same as R-27, 6.0-9.1MHz, IF 2830KHz, 6-tubes, VFO, 28VDC Receivers all use the same 6-tube superhet design: r.f. amplifier (12SK7), converter (12K8), two i.f. stages (two 12SK7's, or 12SK7/12SF7), detector/bfo (12SR7) one audio stages (12A6)
Schematic

BC-455A

BC-455B

BC-456

Modulator, AM Speech, SCR-274N, Same as MD-7.
Schematic

BC-456A

Modulator, AM Speech, SCR-274N.

BC-456B

Modulator, AM Speech, SCR-274N.

BC-457

Transmitter, SCR-274N "Command Set", Same as T-20, 4.0-5.3 MHz, transmitters use four tubes: 1626 oscillator, two 1625 finals, and 1629 magic-eye tuning. All have internal VFO and 28VDC dynamotor.
Schematic

BC-457A

Transmitter, SCR-274N "Command Set", Same as T-20, 4.0-5.3 MHz, transmitters use four tubes: 1626 oscillator, two 1625 finals, and 1629 magic-eye tuning. All have internal VFO and 28VDC dynamotor.

BC-458

Transmitter, SCR-274N "Command Set", Same as T-21, 5.3-7.0MHz, Transmitters use four tubes: 1626 oscillator, two 1625 finals, and 1629 magic-eye tuning. All have internal VFO and 28VDC dynamotor.
Schematic

BC-458A

Transmitter, SCR-274N "Command Set", Same as T-21, 5.3-7.0MHz, Transmitters use four tubes: 1626 oscillator, two 1625 finals, and 1629 magic-eye tuning. All have internal VFO and 28VDC dynamotor.

BC-459

Transmitter, SCR-274N "Command Set", Same as T-22, 7.0-9.1MHz, Transmitters use four tubes: 1626 oscillator, two 1625 finals, and 1629 magic-eye tuning. All have internal VFO and 28VDC dynamotor.
Schematic

BC-459A

Transmitter, SCR-274N "Command Set", Same as T-22, 7.0-9.1MHz, Transmitters use four tubes: 1626 oscillator, two 1625 finals, and 1629 magic-eye tuning. All have internal VFO and 28VDC dynamotor.

BC-461

Antenna reel control box, Used with RL-42.

BC-462A

Control box, Directional, used with BC-463A.

BC-463A

Transmitter, Radio control, Same as T-53, 67-74 MHz, AM, used to control pilotless aircraft, used with BC-462A control box and BC-464A receiver. 12 VDC.
Schematic

BC-464A

Receiver, Radio control, 67-74 MHz, AM, 5 channel, used to contol pilotless aircraft. Used with BC-463A. Uses the following tuning units: TU-41 (73 MHz), TU-43 (71.3 MHz), TU-44 (69.6 MHz), TU-45 (68.0 MHz), or TU-55 (68-73 MHz). Powered by battery pack BX-28 (6 and 200 VDC).
Schematic

BC-473

Control box, Single receiver, Command set, Part of SCR-274N.

BC-474

Receiver/Transmitter, 2.5-6.3MHz, 455KHz IF, AM/CW, Requires 6.3 and 285 VDC, Part of SCR-288, TM 11-250.
Schematic (Part 1)
Schematic (Part 2)

BC-496

Control box, Double receiver, Command set, Part of SCR-274N.

BC-499

Receiver, 20-27.9 MHz, FM, 5 Crystal controlled channels, 12/24 VDC, Part of SCR-293 and SCR-294.

BC-500

Receiver/transmitter, 20-27.9 MHz, FM, 5 Crystal controlled channels, 12/24 VDC, Part of SCR-293 and SCR-294.

BC-603

Receiver, 20-28MHz, FM, IF 2.65MHz, continuous thumb wheel tuning plus 10 presets, 10 tubes, squelch, built-in speaker, Part of SCR-508, SCR-528, SCR-538, TM 11-600.
Schematic
Picture

BC-604

Transmitter, 20-28MHz, FM, 20 Watts, 10 crystal channels, 8 tubes, Part of SCR-508, SCR-528, SCR-538, TM 11-600.
Schematic
Picture

BC-605

Interphone amplifier, Vehicular, used in tanks, Part of SCR-508, SCR-528, SCR-538, SCR-808 and SCR-828, TM 11-600.
Schematic

BC-606

Control box, Vehicular, used in tanks. Part of SCR-506 and SCR-538.

BC-610

Transmitter, 1.5-18MHz, AM/CW, 400W,(Eimac 250TH final), frequency by plug-in tuning units and final coils (up to three at once), FT-171B xtals, part of SCR-299, SCR-399, SCR-499, or GRC-38, AM requires BC-614 (or Hallicrafters HT-5) speech amplifier, 390 lbs (without BC-614), 1939-1955, Hallicrafters (based on HT-4), TM 11-280
Schematic
Picture

BC-610A

BC-610B

BC-610C

BC-610D

BC-610E

BC-610H

BC-610I

BC-611

Receiver/Transmitter, 3.5-6 MHz, AM, Walkie-talkie, 1 Watt. Transmitter and receiver crystal controlled, IF 455KHz, 5 tubes. Requires 1.5 and 103.5VDC. Part of SCR-536. TM 11-235.
Schematic
Picture

BC-611F

Receiver/Transmitter, 3.5-6 MHz, AM, Walkie-talkie, 1 Watt. Transmitter and receiver crystal controlled, IF 455KHz, 5 tubes. Requires 1.5 and 103.5VDC. Part of SCR-536. TM 11-235.
Schematic

BC-614

Speech amplifier, used with BC-610, TM 11-280.
Schematic

BC-614D

Speech amplifier, used with BC-610D, TM 11-280.
Schematic

BC-614E

Speech amplifier, used with BC-610E, TM 11-5054.
Schematic

BC-614F

Speech amplifier, used with BC-610F, TM 11-5054.
Schematic

BC-614H

Speech amplifier, used with BC-610H, TM 11-5054.

BC-614I

Speech amplifier, used with BC-610I, TM 11-5054.

BC-620

Receiver/Transmitter, manpack, 20-28MHz, FM, IF 2.88MHz, tx continuously tunable, receiver crystal controlled, 13 tubes, 2 channels. Requires 60, 22.5 and 4.5 VDC. Part of SCR-509 and SCR-510, TM 11-605.
Schematic

BC-624

Transmitter, 100-156 MHz, AM, 4 channel, Crystal controlled, Part of SCR-522 equipment.

BC-625

Receiver, 100-156 MHz, AM, 4 channel, Crystal controlled, IF 12 MHz, Part of SCR-522 equipment.

BC-631

Control Box, Remote audio, Part of SCR-522.

BC-639

Receiver; frequency range: 100 to 156 Mhz; frequency control: 1 xtal controlled channel; Power requirements: 115 VAC.

BC-640

Transmitter, 100-156 MHz, 1 crystal channel, AM, 50 W, 110/220 VAC, Rack mounted.

BC-641(*)

Amplifier, Public address, Used with LS-6 and T-36, Tubes 1H4GT and 1J6GT, Power 2 ea BA-30 ans 2 ea BA-51, Part of PA-4, TM 11-435.

BC-642

Radio frequency amplifier, 4-20 MHz, AM/CW, 3 Kw, 12 tubes, 7 x 48 x 78, 590 Lbs.
Picture

BC-643

Modulator unit, Used with BC-643.

BC-645

Transponder, Identification, friend or foe, 470 & 493.5 MHz, Pulse or CW (30 KHz), 20 Watts, 15 tubes, Part of SCR-515.
Schematic

BC-652

Receiver, vehicular, 1.5-6.0MHz, AM/CW, IF 915KHz, 11 tubes, crystal calibrator. Requires 12/24 and 274VDC. Part of SCR-506, TM 11-630.
Schematic

BC-653

Transmitter, 100-400KHz & 1.5-6.0MHz, AM/CW, VFO, 50 Watts. Requires 12/24, 500 and 1000VDC, From DM-42 or DM-43, Tubes: 2 ea 0A2, 807, 2 ea 814 and 2 ea 1613, Part of SCR-506, TM 11-630.
Schematic
Picture

BC-653A

Transmitter, 100-400KHz & 1.5-6.0MHz, AM/CW, VFO, 50 Watts. Requires 12/24, 500 and 1000VDC, From DM-42 or DM-43, Tubes: 2 ea 0A2, 807, 2 ea 814 and 2 ea 1613, Part of SCR-506, TM 11-630.
Schematic

BC-654

Receiver/Transmitter, 2-6MHz, AM/CW, 13 tubes, Rx VFO, Tx VFO or crystal. Requires 6 and 500 VDC. Part of SCR-284. TM 11-275.
Schematic (Part 1)
Schematic (Part 2)
Schematic (Part 3)
Schematic (Part 4)

BC-655

Transmitter, Alignment, 17-160 MHz, Used to test direction finders.

BC-658

Radio Interphone switch box, Part of SCR-506.

BC-659

Receiver/Transmitter, manpack, 27.0-38.9MHz, FM, IF 9.3 MHz, 14 tubes, Requires 60, 25.5, -4.5 VDC. Part of SCR-609 and SCR-610, TM 11-615.
Schematic

BC-659A

Receiver/Transmitter, manpack, 27.0-38.9MHz, FM, IF 9.3 MHz, 14 tubes, Requires 60, 25.5, -4.5 VDC. Part of SCR-609 and SCR-610, TM 11-615.
Schematic

BC-659J

Receiver/Transmitter, manpack, 27.0-38.9MHz, FM, IF 9.3 MHz, 14 tubes, Requires 60, 25.5, -4.5 VDC. Part of SCR-609 and SCR-610, TM 11-615.
Schematic

BC-669

Receiver/Transmitter, 1.7-4.4MHz, AM/CW, IF 385KHz, 15 tubes, Requires 12/24 and 280 VDC, Hallicrafters HT-14, Part of SCR-543, TM 11-625 or TM 11-4058.
Schematic
Picture (Part 1)

BC-669A

Receiver/Transmitter, 1.7-4.4MHz, AM/CW, IF 385KHz, 15 tubes, Requires 12/24 and 280 VDC, Hallicrafters HT-14, Part of SCR-543, TM 11-625 or TM 11-4058.
Schematic (Part 1)
Schematic (Part 2)

BC-669D

Receiver/Transmitter, 1.7-4.4MHz, AM/CW, IF 385KHz, 15 tubes, Requires 12/24 and 280 VDC, Hallicrafters HT-14, Part of SCR-543, TM 11-625 or TM 11-4058.
Schematic (Part 1)
Schematic (Part 2)

BC-683

Receiver, Vehicular, 27-38.9MHz, FM, 10 preset channels or continuous tunable, IF 2.65MHz. Requires 12/24 and 285 VDC. Part of SCR-608 and SCR-628, TM 11-620.
Schematic

BC-684

Transmitter, vehicular, 27-38.9MHz, FM, 10 crystal controlled channels, 8 tubes. Requires 12/24 and 600 VDC. Part of SCR-608 and SCR-628, TM 11-620.
Schematic

BC-696

Transmitter, SCR-274N, 3.0-4.0 MHz, Transmitters use four tubes: 1626 oscillator, two 1625 finals, and 1629 magic-eye tuning. All have internal VFO and 28VDC dynamotor.
Schematic

BC-696A

Transmitter, SCR-274N, 3.0-4.0 MHz, Transmitters use four tubes: 1626 oscillator, two 1625 finals, and 1629 magic-eye tuning. All have internal VFO and 28VDC dynamotor.

BC-699

Receiver/transmitter; frequency range: 1.6 to 4.5 Mhz; power input: 45 watts; frequency control: 6 xtal controlled channels plus VFO; Modes: AM (A3) only; Power requirements: 24 VDC.

BC-701

Receiver, 170-180 MHz, IF 30.5, 11 Tubes.

BC-704A

Indicator, Radar, Part of SCR-521.

BC-716

Receiver, RADAR, 700 MHz, 14 Tubes, Part of SCR-296.

BC-717

Transmitter, Radar, Costal defense, 700 MHz, 6 tubes, Part of SCR-296.

BC-718

Oscilloscope, 3 inch, 3AP1/4 and 6 tubes, Part of SCR-296.

BC-719

Oscilloscope, 5 inch, 3HP1 and 19 tubes, Part of SCR-296.

BC-720

Modulator, RADAR, 8 tubes, Part of SCR-296.

BC-721

Receiver/Transmitter, 3.5-6 MHz, AM, Walkie-talkie, 1 Watt. Transmitter and receiver crystal controlled, IF 455KHz, 5 tubes. Requires 1.5 and 103.5VDC. Part of SCR-536.
Schematic

BC-723

Range Unit, 2 ea 6SJ7, Part of SCR-296.

BC-724

Power Drive, RADAR antenna, Part of SCR-296.

BC-725

Calibrator, RADAR, TM 11-1048, 1942, Part of SCR-296.

BC-726

Calibrators, RADAR, Consists of I-147, I-156 and I-168, 3 tubes, TM 11-1128, 1943, Part of SCR-296.

BC-728

Receiver, 2-6MHz, AM, IF 455KHz, 7 tubes. Requires 12/24 VDC. Part of SCR-593, TM 11-859.
Schematic (Part 1)
Schematic (Part 2)

BC-728A

Receiver, 2-6MHz, AM, IF 455KHz, 7 tubes, Requires 2.0 VDC. Part of SCR-593, TM 11-859.

BC-730

Amplifier, Compressor, 110/220 VAC 60 Hz, 80 W, 5 tubes, 19 x 7 x 9, 25 lbs, Federal Telegraph CA-421.
Picture

BC-733

Receiver, Navagational, Glide Slope, 108.3-110.3 MHz, IF 6.9 MHz, 12/24 VDC.
Schematic

BC-745

Receiver/Transmitter, manpack, HF, controlled by tuning units, rx and tx crystal controlled by BC-746, one channel, IF 455 KHz, 9 tubes. Requires 1.5, 67.5 and 150 VDC. Part of SCR-511, TM 11-245.
Schematic

BC-745B

BC-746

Tuning unit, contains RX and TX crystals, Used with BC-745, Part of SCR-511.

BC-764

Receiver, 590KHz-20MHz, AM/CW, IF 465KHz, 14 tubes. Similar to SP-110. Requires 115VAC. Part of SCR-244.
Schematic

BC-764A

Receiver, 590KHz-20MHz, AM/CW, IF 465KHz, 14 tubes. Similar to SP-110. Requires 115VAC. Part of SCR-244.
Schematic

BC-764B

Receiver, 590KHz-20MHz, AM/CW, IF 465KHz, 14 tubes. Similar to SP-110. Requires 115VAC. Part of SCR-244.
Schematic

BC-778

Transmitter, "Gibson Girl", WWII, rescue, hand cranked, automatic SOS on 500 and 8364KHz, hand keyed on 500KHz, watertight case, built-in key and deployable antenna, 18lbs

BC-779

Receiver, 110-380KHz and 2.5-20MHz, AM/CW, IF 465KHz, 14 tubes. Similar to SP-440. Requires 115VAC. Part of SCR-244.
Picture

BC-787

Receiver, AM/FM, 28-143MHz, IF 5.25MHz, 15 Tubes, Hallicrafters SX-36, Part of SCR-607, TM 11-867, 115/230 VAC 50-60 Hz or batteries.
Schematic
Picture

BC-787A

Receiver, AM/FM, 28-143MHz, IF 5.25MHz, 15 Tubes, Hallicrafters SX-36, Part of SCR-607, TM 11-867, 115/230 VAC 50-60 Hz or batteries.

BC-787B

Receiver, AM/FM, 28-143MHz, IF 5.25MHz, 15 Tubes, Hallicrafters SX-36A, Part of SCR-607, TM 11-867, 115/230 VAC 50-60 Hz or batteries.
Picture

BC-788

Receiver, IFF, 420-450 MHz, IF 30MHz.

BC-792

Receiver, 100KHz-60MHz, AM/CW, IF 455 or 910KHz, 8 tubes. Requires BB-51 and 2 BB-52s. Part of SCR-504, TM 11-862.
Schematic

BC-794

Receiver, 1.26-40MHz, AM/CW, IF 465KHz, 14 tubes. Similar to SP-110. Requires 115VAC. Part of SCR-244.
Picture

BC-906

Frequency meter, absorption, 150-225 MHz, 1.5 and 45 VDC.
Schematic

BC-912

Keying Unit, 7 Tubes including 2 ea 304TH (in FM-23), Part of SCR-582.

BC-923

Receiver, Vehicular, 27-39MHz, FM, IF 13.575 & 2.850MHz, 13 tubes, 4 preset continuously tunable channels. Requires 12/24 and 260 VDC. Part of SCR-808 and SCR-828, TM 11-601, Used DM-64 or DM-66.
Schematic (Part 1)
Schematic (Part 2)
Schematic (Part 3)
Picture

BC-924

Transmitter, vehicular, 27-39MHz, FM, 4 preset channels. Requires 12/24 and 260 VDC. Part of SCR-808 and SCR-828, TM 11-601, Used DM-47 and DM-65.
Schematic
Picture

BC-926

RF Amplifier, 3 Tubes in rack FM-53, Part of SCR-582.

BC-929

Indicator, Radar, Oscilloscope, 110 VAC, 60 Hz.

BC-938A

Control box, VHF-HF, Part of SCR-274N.

BC-939

Tuner, Antenna, Used with BC-610(*), Part of SCR-399 and SCR-499.
Picture

BC-939A

Tuner, Antenna, Used with BC-610E, Part of SCR-399 and SCR-499.
Picture

BC-946

Receiver, SCR-274N "Command Set", 520-1500KHz, IF 239KHz, 6-tubes, VFO, 28VDC Receivers all use the same 6-tube superhet design: r.f. amplifier (12SK7), converter (12K8), two i.f. stages (two 12SK7's, or 12SK7/12SF7), detector/bfo (12SR7) one audio stages (12A6)
Schematic
Picture

BC-947

Transmitter, 3 GHz, 115 VAC.

BC-950

Transmitter, 100-156 MHz, Part of SCR-274N. 4 channels, 2-1625s and 2-832s, 10 watts output, AM

BC-952

Receiver, Radar, 22 Tubes, in FM-52, RC-62, Part of SCR-582.

BC-953

Training Unit, Part of SCR-582.

BC-954

Oscilloscope, Tubes 6E5 & 1813P7 CRT, in FM-52, Part of SCR-582.

BC-955

Servo Amplifier and Control Box, Used with CD-675, CD-692,Part of SCR-517B and SCR-582.

BC-956

Oscilloscope, 12 tubes & 1802P1 CRT, Part of SCR-582.

BC-966

Transceiver, IFF, 150 MHz, 14 tubes, 14 VDC.

BC-969

Radio receiver, 0.015-0.15 MHz, AM/CW/MCW, Xtal filter, 19 x 10.5 x 16, 49.3 Lbs, Power by RA-61, PE-223 or batteries, 12 tubes, TM 11-873, Part of SCR-614.
Picture

BC-969A

Radio receiver, 0.015-0.15 MHz, AM/CW/MCW, Xtal filter, 19 x 10.5 x 16, 49.3 Lbs, Power by RA-61, PE-223 or batteries, 12 tubes, TM 11-873, Part of SCR-614.

BC-973

Receiver, Automatic DF, 1-3 MHz, AM/CW, IF 458KHz, 11 tubes. Part of SCR-503, TM 11-246A.
Schematic

BC-976

Receiver, Automatic DF, 2-10 MHz, AM/CW, IF 465KHz, 13 tubes. Part of SCR-551, TM 11-247.
Schematic (Part 1)
Schematic (Part 2)

BC-991

Oscilloscope unit, 11 tubes, Part of SCR-503 and SCR-551, TM 11-247.
Schematic

BC-1000

Receiver/Transmitter, manpack, 27-39 FM, IF 4.3 and 2.515 MHz, Part of SCR-300, Tubes: 1A3, 5 ea 1L4, 3 ea 1S5, 6 ea 1T4, 1R5 and 2 ea 3A4, 4.5 @ .5 A, 90 @ 25 ma & 150 @ 25 ma, 5.6 x 11.3 x 14.4, 28 lbs, TM 11-242.
Schematic
Picture

BC-1003

Receiver, Automatic DF, 100-1200 KHz, AM/CW, IF 1625KHz, 11 tubes. Part of SCR-503, TM 11-246A.
Schematic

BC-1004

Receiver, 590KHz-20MHz, AM/CW, IF 465KHz, 14 tubes. Similar to SP-440. Requires 115VAC. Part of SCR-244 or AN/FRR-4.
Picture

BC-1017

Transmitter set, Radar, Jamming, Same as T-26, 400-700 MHz, AM, 8 W, White noise, 115 VAC, 400 Hz, Part of AN/APT-2.

BC-1023

Receiver, marker beacon, 62-80MHz, 4 tubes, 14VDC.
Schematic

BC-1031

Radio receiving set, Panoramic, Input 400 KHz, Sweep +/- 25 KHz, 44 LBs, 1943, Panoramic Radio Corp, Identical to RBU.
Picture

BC-1031A

Radio receiving set, Panoramic, Input 400 KHz, Sweep +/- 25 KHz, 44 LBs, 1943, Panoramic Radio Corp, Identical to RBU.
Picture

BC-1050

Radio receiving set, Panoramic, Input 0.405-0.505 MHz.

BC-1060A

Oscilloscope.

BC-1066

Receiver, 100 MHz and 200 MHz, Used as test set for SCR-695 IFF transponder, TO: 1640BC-1066-2.
Schematic

BC-1068A

Receiver, Same as BC-1161A, Part of SCR-270 and SCR-271.

BC-1072A

Transmitter, IFF, 150-200 MHz, 11 tubes, 115 VAC, Part of SCR-270 and SCR-271.

BC-1141

Amplifier, Mine detector, Audio, Tubes: 1G6GT, 2 ea 1N5GT, Power: 2 ea BA-30 and BA-38, Part of SCR-625.

BC-1161A

Receiver, IFF, 150-200 MHz, 14 tubes, 115 VAC, same as BC-1068A, Part of SCR-270 and SCR-271.

BC-1171

Control Box, used with SCR-522 or SCR-624.

BC-1175

Control Box, used with SCR-522 or SCR-624.

BC-1176

Control Box, used with SCR-522 or SCR-624.

BC-1206

Receiver, Beacon, 195-425 KHz, 6 tubes, 24 VDC.
Schematic

BC-1253

Transmitter, Radiosonde, 180 MHz.

BC-1255

Receiver, 70-150MHz, vacuum tube, 6" cube, R. L. Drake

BC-1267

Receiver/Transmitter, IFF, 154-186 MHz, 1 KW pulse.

BC-1269

Receiver, 145-600 MHz, AM/CW/FM, Part of SCR-616, Same as R-593, TM 11-260.
Picture

BC-1276A

RF unit, 9.7 GHz, Radar, Part of AN/APQ-13.

BC-1292

Amplifier and record player, Part of PA-5, Used with RA-103, LS-12 and T-55, Tubes: 6SJ7, 6SL7GT, 2 ea 6L6, and 2 ea 6X5, TM 11-2504.

BC-1286

Automatic Gain Control Unit, Used with BC-716 and RA-49, Part of SCR-296, 1943.

BC-1296

Range Control Unit, Used with BC-723 and RS-296, Part of SCR-296.

BC-1297

Position Transmitter, Component of Potentioneter RS-296, Part of SCR-296.

BC-1306

Receiver/Transmitter, 3.5-6.5MHz, AM/CW, IF 455KHz, 11 Tubes. Requires 6.3, 1.4, 105 and 425-500 Volts, TM 11-2603 and TM 11-230C.
Schematic (Part 1)
Schematic (Part 2)

BC-1321

Control box, radio and interphone, Part of SCR-528 and SCR-628. Used in Sherman tanks.

BC-1335

Receiver/Transmitter, 27-39MHz, FM, IF 4.3Mhz, 17 Tubes. Vehicular, 6/12 VDC, Part of SCR-619.
Schematic

BC-1365

Tracking Indicator, B-Scope, Used with SCR-582,682A,Part of MC-593 Kit.

BC-1366

Control box, VHF and command.

BD-77

Dynamotor unit, 12 VDC input, Used with SCR-193().

BD-132/A

BD-71

Switchboard, Manual, 6-channels, Local battery - 6 ea BA-30, TM 11-330, Major components:

 
 BD-71 Switchboard,
 6 ea EE-2 Switchboard units,
 6 ea BA-30 Batteries,
 HS-30 Headset,
 CH-18/GT Chest set

BD-94A

Dynamotor, 14 VDC @ 1.75A in, 225 VDC @ 50 ma, 15% regulation, Used with BC-224.

BE

Transmitter, Identification, friend or foe, Shipboard, 470 MHz, A2, 10 W, 115 VAC, used with BF.

BF

Receiver, Identification, friend or foe, Shipboard, 470 Mhz, IF 40 MHz, 115 VAC, 60 Hz, Major components:

 
 CG-46AAD Receiver unit,
 CG-23AAD Receiver control,
 CG-66AAB Receiver antenna

BG

Transponder, Identification, Friend or foe, Interogator and responder, Shipboard, 470/493.5 MHz, 500 W, 115 VAC, 60 Hz.

BH

Transponder, Identification, Friend or foe, Shipboard, Interrogator-Responsor, 470 & 493.5 MHz, 1 KW, 1942, RW.

BI

Transponder, Identification, Friend or foe, Interogator and responder, Shipboard, 470/493.5 MHz, 500 W, 115 VAC, 60 Hz.

BK

Transponder, Identification, Friend or foe, Shipboard installation of ABK, 157-187 MHz, 6 W, 12 VDC 120 W, 1942.

BL

Transponder, Identification, Friend or foe, Interogator and responder, Shipboard, 157-200 MHz, 100 W, Hazeltine, 1941.

BL-1

Same as BL, Hazeltine, 1942.

BL-2

Same as BL, Hazeltine, 1941.

BL-3

Same as BL, Hazeltine, 1942.

BL-4

Same as BL, Hazeltine, 1942.

BL-5

Same as BL, Hazeltine, 1942.

BL-6

Same as BL, Hazeltine, 1942.

BL-7

Reassigned as BL-6, Hazeltine, 1942.

BM

Transponder, Identification, Friend or foe, Interogator and responder, Shipboard, 157-200 MHz, 1500 W, 115 VAC 60 Hz, Hazeltine, 1942.

BM-1

Same as BM, Hazeltine, 1944.

BM-2

Same as BM, CKP, 1945.

BN

Transponder, Identification, friend or foe, Shipboard, 157-187 MHz, 500W, IF 30 MHz, 115 VAC, Main components include: 10233 equipment cabinet 50ACW duplexer 10367 cabinet (modified) 52ACQ transmitter oscillator 43ACB mod. & IF-video conv. 66ACG antenna 46ACW IF converter 66AFJ antenna (alternate).

BO

Transponder, Identification, Friend or foe, Interogator and responder, Shipboard, 190-210 MHz, 1500 W, Hazeltine, 1943.

BO-1

Same as BO, Hazeltine, 1944.

BP

Transponder, Identification, Friend or foe, Interogator or responder, Shipboard, 470 MHz Tx, 493.5 MHz Rx, 500 W, IF 30 MHz, 115 VAC, improved BN (different RF circuits: lighthouse tubes replacing 6J6s in receiver; push-pull 15Es in the transmitter in place of a single 5E), Farnsworth Television and Radio, 1944.

BQ

Transponder, Identification, Friend or foe, Interogator or responder, Shipboard, 110-165 MHz, 700 W, 115 VAC, improved BL, Hazeltine, 1943.

BR

Transponder, Identification, Friend or foe, Shipboard, 680-720 MHz, 5 W, 12 VDC, Harvey Radio Lab, 1944.

BR-1

Same as BR except 115 VAC 60 Hz, Harvey Radio Labs, 1944.

BT

Transponder, Identification, Friend or foe, Shipboard, 680-720 MHz, 5 W, 12 VDC, Similar to BR except install, Harvey Radio Labs, 1944.

BZ-236A/TSC

BZ-254/MSQ-114

C-1/ARR-1

Control box, Part of AN/ARR-1.

C-2/ARR-2

Control box, Part of AN/ARR-2.

C-4/ARN-7

Control box, Part of AN/ARN-7.

C-5/APS-2

Remote tuning control, Part of AN/APS-2(*).

C-6/APQ-5

Control box, Part of AN/APQ-5.

C-7/APQ-5

Tracking unit, Part of AN/APQ-5.

C-17/APS-3

Control unit, Part of AN/APS-3.

Copyright 1998 by Bill Beech
Material extracted from noncopyrighted sources.
Comments to: nj7p at nj7p dot org
Last Modified: Sat Jun 10 23:51:20 2000