Military Equipment List (Part 11)
ASH
Radar, Airborne, Search, X-band, Western Electric, 1942, Reassigned as AN/APS-4.
ASH-1
Radar, Airborne, Search, Reassigned as AN/APS-5, Western Electric.
ASJ
Radar set, Airborne, Reassigned as AN/APS-17(XN), CPR, 1943.
AT-4/APN-1
Antenna, UHF, used with AN/APN-1.
AT-5/ARR-1
Antenna, 234-256 MHz, used with AN/ARR-1 and AN/ARR-2.
AT-8
Antenna, Whip, 140-148 MHz, 1/4 wave, Part of AN/ARC-4.
Picture
AT-150/SRC
Antenna, Broadband dipole, 225-400 MHz.
AT-197/GR
Antenna, Discone, 225-400 MHz, 1 KW.
AT-256A/ARC
Antenna, 225-400 MHz, Vertical polarization, Omnidirectional, Blade.
AT-271/PRC
Antenna, VHF, 7 section whip, 7.5 foot, used with AN/PRC-8, AN/PRC-9, and AN/PRC-10, AN/PRC-25 and AN/PRC-77.
AT-271A/PRC
Antenna, VHF, 7 section whip, 7.5 foot, used with AN/PRC-8, AN/PRC-9, and AN/PRC-10, AN/PRC-25 and AN/PRC-77.
AT-272/PRC
Antenna, VHF, Tape whip, 3 Feet, Used with AN/PRC-8, AN/PRC-9 and AN/PRC-10.
AT-326/ARN
Antenna, Glide Slope.
AT-348/PRC
Antenna, VHF, Whip, Used with PRC-23 and PRC-24.
AT-352/UPA-22
Antenna, Slotted, 1010-1110 MHz, Vertical polarized, Part of AN/GPA-24, 10 Foot wide, 7 degree beamwidth, TM 11-5895-211-15.
AT-353/UPA-22
Antenna, Slotted, 1010-1110 MHz, Vertical polarized, Part of AN/GPA-24, 5 Foot wide, 15 degree beamwidth, TM 11-5895-211-15.
AT-353A/UPA-23
Antenna, Slotted, 1010-1110 MHz, Vertical polarized, Part of AN/GPA-24, 5 Foot wide, 15 degree beamwidth, TM 11-5895-211-15.
AT-413/TRC
Antenna, Dipole, 225-400 MHz, Part of large array.
AT-450/ARC
Antenna, 225-400 MHz, 52 Ohms, Vertical Polarization, Omnidirectional, Blade.
AT-454/ARC-44
Antenna, 24-52 Mhz, Major components: AB-340A, AT-455A and CU-361D, Part of AN/ARC-44.
AT-486/G
Antenna, VHF, Whip, Used with PRC-21.
AT-536/ARN
Antenna, 75 MHz, Beacon, Part of ARN-32.
AT-558
Antenna, Vertical dipole, 116-132 MHz, Vertical polarity.
AT-624/AR
Antenna elements, Used with CU-459/AR, Part of AN/ARA-31.
AT-640/ARN
Antenna, 75 Mhz, Marker beacon, 52 Ohms, Horizontal polarization, Collins 37X-2.
AT-640A/ARN
Antenna, 75 Mhz, Marker beacon, 52 Ohms, Horizontal polarization, Collins 37X-2.
AT-683/PRC-33
Antenna, VHF, Whip, Part of PRC-33.
AT-701
Antenna, 225-400 Mhz, Part of AN/ARC-60A.
AT-740/A
Antenna, IFF, Flush mount.
AT-741/A
Antenna, 960-1220 MHz, Vertical polarization, Omnidirectional, Receiving only, Blade.
AT-780/ARN
Antenna, LF/MF, Direction finding, used with AN/ARN-59.
AT-784/PRC
Loop antenna, Direction finding, 30-76 MHz, Used with PRC-77 and VRC-12, 2.5 Lbs, TM 11-5985-284-15.
AT-803/VR
Antenna, Omnidirectional, 225-400 MHz.
AT-864
AT-884/APX-44
Antenna, 1010-1110 MHz, Vertical polarization, Omnidirectional, Blade.
Picture
AT-892
Antenna, VHF, semirigid tape, used with AN/PRC-25 and AN/PRC-77.
AT-903
Antenna, UHF, 600-1800 MHz, Horn, used with AN/GRC-50
AT-912
Antenna, VHF, 30-76MHz, Vehicular, Vertical Coaxial Dipole, With tuner, used with AN/VRC-12 series
AT-96/APN-12
Antenna, VHF, Part of AN/APN-12.
AT-984A/G
Long-wire antenna, 30-76 MHz, used with PRC-25 and PRC-77, 10 Lbs, TM 11-5820-398-12.
AT-1011
Antenna, HF, Whip, 16 foot, used with AN/GRC-193 and AN/GRC-206.
AT-1082/PRC
AT-1108/ARC
Antenna, Dual, 116-152 and 225-400 MHz, 52 Ohms (each), Vertical polarization, Omnidirectional, Collins 37R-2U, Blade.
ATA
Transmitters, Airborne, like SCR-274N and ARC-5 HF transmitters but broader frequency range, 0.5 to 9.1 MHz in eight units 25 W CW, 12 W MCW, 8 W AM, 28V, Used with ARA receivers, Aircraft Radio Corp. and Stromberg-Carlson, Major components:
CBY-21626 Dynamotor, Transmitter
CBY-29125 Antenna Relay
CBY-23243 Transmitter control box
CBY-50083 Modulator
CBY-52232 Transmitter, 2.1-3.0 MHz
CBY-52208 Transmitter, 3.0-4.0 MHz
CBY-52209 Transmitter, 4.0-5.3 MHz
CBY-52210 Transmitter, 5.3-7.0 MHz
CBY-52211 Transmitter, 7.0-9.1 MHz
CBY-50141 Modulator, Version A
CBY-52302 Transmitter, Version A, 0.5-0.8 MHz
CBY-52303 Transmitter, Version A, 0.8-1.3 MHz
CBY-52304 Transmitter, Version A, 1.3-2.1 MHz
CBY-52305 Transmitter, Version A, 2.1-3.0 MHz
CBY-52306 Transmitter, Version A, 3.0-4.0 MHz
CBY-52307 Transmitter, Version A, 4.0-5.3 MHz
CBY-52308 Transmitter, Version A, 5.3-7.0 MHz
CBY-52309 Transmitter, Version A, 7.0-9.1 MHz
ATA-1
ATA by Stromberg-Carlson, 1942.
ATA-3
ATA by Aircraft Radio Corporation, Reassigned AN/ARC-5, 1940.
ATB
Transmitter, Airborne, 2.3-9.05 MHz, 2 preset channnels, 2.8 W AM-MCW, 3.5 W CW, 28 VDC, U/W ARB, RCA identifier ATD-50, CRV, 1941, production 4000, Major components:
CRV-52233 Transmitter
CRV47192 tuning units, 2 each
CRV-21724 dynamotor
CRV-23314 pilot's control box
CRV-23313 operator's control box
ATC
Transmitter, Airborne, Reassigned as T-47/ART-13, 0.2-1.5 and 2-18 MHz, 10 preset chans., 50 W AM or 100 W CW, Collins autotune, frequency-meter style VFO, 813 final and 811 modulators, Also see TCZ, Major components:
COL-52286 Transmitter
COL-21932 28-V dynamotor
COL-21931 115VDC dynamotor (!)
COL-47281 antenna load coil
COL-48628 antenna shunt capacitor
ATC-1
Transmitter, Airborne, Same as ATC, CZR, 1942.
ATC-2
Transmitter, Airborne, Same as ATC, CG, 1943.
ATD
Transmitter, Airborne, 0.54-9.05 MHz, 50 W CW, 40 W AM, Bendix, 1940, 28 V, 814 final stage, Major components:
CRR-52253 transmitter
CRR-55079 remote indicator
CRR-23280 remote control unit
CRR-21748 dynamotor
CRR-47206 through 47211 tuning units
ATE
Transmitter, Airborne, RCA, 28 VDC, Used with ARE, Television.
ATF
Transmitter, Airborne, RCA, 28 VDC, Used with ARF, Television.
ATG
Transmitter, Airborne, RCA, 14 VDC, Used with ARG.
ATH
Transmitter, Airborne, RCA, 28 VDC, Used with ARH.
ATJ
Transmitter, Airborne, Television, 276-312 MHz, 5 Channels, Used with ARJ, 28 VDC. CRV, 1942.
ATK
Transmitter, Airborne, Television, 264, 276, 288, 300 and 312 MHz, 30 W, 10 Channels, used with ARK, 28 VDC, became T-61/AXT-2, CRV, 1942.
ATL
Transmitter, Airborne, RCA, 28 VDC, Used with ARL.
ATM
Radiosonde, 79-102 MHz, A2, 240 mW, CGA, 1941.
ATM-1
Radiosonde, Same as ATM, CUZ, 1943.
ATN
Transmitter, Airborne, CID, 1942.
ATN-1
Transmitter, Airborne, CFF, 1942.
ATO
Transmitter, Airborne, CG, 1941, Used with ARO.
ATR
Tube tester, pre-TR and ATR tubes, Checks gas fill by detecting light emitted when gas ionized by microwave energy, 95-125 VAC 60 Hz 500 W, CCWR, 1942.
AYA
Radio Altimeter, 0-4000 Feet, 12 VDC, RCA, 1941.
AYA-1
Radio Altimeter, Same as AYA except 24 VDC, RCA, 1941.
AYA-2
Radio Altimeter, Same as AYA except 0-20000 Feet, 12 VDC, RCA, 1942.
AYA-3
Radio Altimeter, Same as AYA-2 except 24 VDC, RCA, 1942.
AYB
Radio Altimeter, FM, 420-460 MHz, 0.01 W, 14 VDC, relay output for low altitude indication, RCA, 1942, Major components:
CRV-43016 14 VDC
CRV-43017 28 VDC
AYB-A
Radio Altimeter, Same as AYB except modified with anticipator circuit, CRV, 1942.
AYB-1
Radio Altimeter, Same as AYB, RCA, 1942.
AYB-2
Radio Altimeter, Same as AYB, RCA, 1942.
AYC
Radio Altimeter, FM, 420-460 MHz, 0.01 W, 14 VDC, CTF, 1941.
AYD
Radar Altimeter, 420-460 MHz, Doppler frequency shift, dual scale meter 0-400 feet, TO AN 16-30APN1-4, Output 0.1 W, 14 or 28 VDC, Major components
RT-7/APN-1 Transmitter-receiver,
2 ea AT-4/APN-1 antennas
ID-14/APN-1 Altitude indicator,
SA-1/ARN-1 Altitude limit switch
.
AYD-1
Radio Altimeter, Reassigned as AN/ARN-1, 14/28 VDC, RCA, 1943.
AYD-2
Radio Altimeter, Reassigned as AN/ARN-1, 28 VDC, RCA, 1943.
AYD-3
Radio Altimeter, Reassigned as AN/ARN-1, RCA, 1943.
AYD-4
Radio Altimeter, Reassigned as AN/ARN-1, 14/28 VDC, RCA, 1943.
AYD-5
Radio Altimeter, Reassigned as AN/ARN-1, 14/28 VDC, RCA, 1943.
AYD-1
Radio Altimeter, Reassigned as AN/ARN-1, 14 VDC, RCA, 1943.
AYE
Radio receiver, 234-258 MHz, AM, Reassigned as AN/ARR-1, RCA, 1942.
AYF
Radio altimeter, RCA, 1943.
AYF-1
Radio altimeter, RCA, 1943, Reassigned as AN/APN-1.
AYF-2
Radio altimeter, CQC, 1942, Reassigned as AN/APN-1.
AYF-3
Radio altimeter, CDT, 1943, Reassigned as AN/APN-1.
BA
Transponder, Shipboard, 470-493.5 MHz, 30 W, 115 VAC, CG, 1942.
BA-2
Battery,
BA-23
Battery,
BA-27/U
Battery, 4.5 Volt, Used in EE-8 Field Telephone.
BA-30
Battery, 1.5 Volt, "D" Cell.
BA-37/U
1.5 Volt battery, used with SCR-536.
BA-38/U
103.5 Volt battery, used with SCR-536.
BA-39/U
Battery
BA-40/U
Battery
BA-41/U
Battery
BA-42
Battery, Dry, 1.5 Volt, Used with TA-838.
BA-48
Battery, 1.4 VDC and 105 VDC, Used with AN/GRC-9.
BA-49
Battery, Used with SCR-511.
BA-51/U
Battery, 67.5 Volts.
BA-200/U
Battery, 6 Volt.
BA-279/U
Battery, -6, 1.5, 67, and 135 Volts, Used with AN/PRC-8, AN/PRC-9 or AN/PRC-10.
BA-358/U
Battery, ?? Volts, Used in PRC-21.
BA-386/U
Battery, 3 and 12 Volts.
BA-398/U
Battery, 3 and 12 Volts.
BA-399/U
Battery, Dry, Part of PRT-4.
BA-403/U
Battery, 1.5 Volts
BA-414/U
Battery, Dry, 45 VDC, Used with GRA-6.
BA-419/U
Battery, 90 Volts
BA-451/U
Battery, Dry, 24 VDC, Used with PRC-41.
BA-505/U
Batery, Dry, Used with PRR-9.
BA-1509
Battery, Dry, 31.5 VDC, Used with PRC-64.
BA-1568/U
Battery, Dry, Mercury alkaline, Used with PRC-90.
BA-1588/U
Battery, Dry, Used with PRC-68.
BA-2042
Battery, Dry, Alkaline, 1.5 VDC, Used with TA-838.
BA-4386/U
Battery, Magnesium-hydride, 3 and 12 Volts, Used with PRC-25, PRC-77 and KY-28.
BA-4840/U
Battery, Dry, 24 VDC, Used with TRN-30.
BA-5590/U
Battery, Dry, Lithium, 12 VDC, Used with PSC-3 and VSC-7.
BA-5598/U
Battery, Lithium, 3 and 12 Volts, Used with PRC-25, PRC-77 and KY-28.
BA-5599/U
Battery, Dry, 9 VDC, Use with TS-3647.
BB-46
Battery, Lead acid, 12 VDC, Used with TTC-7 and GTA-14.
BB-54A
Battery, Lead-acid, 2 Volt, Used with TRC-2 and SCR-593.
BB-418/U
Battery, 1.5 VDC, Used with PRC-74.
BB-432/A
Battery,
BB-433/A
Battery,
BB-434/A
Battery,
BB-451/U
Battery, 24 VDC, Used with PRC-47.
BB-476/A
Battery,
BB-534/U
Battery, 24 VDC, Used with PRC-70.
BB-590/U
Battery, Lead acid, 12 VDC, Used with PSC-3 and VSC-7.
BB-622/U
Battery, 24 VDC, Used with PPS-5.
BB-641/A
Battery,
BB-649/A
Battery,
BB-651/U
Battery, 24 VDC, Used with PRC-70.
BB-676/A
Battery,
BB-678/A
Battery,
BB-716/A
Battery,
BC-7
Receiver/Transmitter, CW, 550-1100 KHz, Transmitter one VT-3, Receiver 3 ea VT-3, Part of SCR-127.
Schematic
Picture
BC-8
Receiver, Airborne, 150-500 KHz, 6 tubes.
BC-9A
Radio set, 4100-4400 KHz.
BC-10
Interphone, Aircraft, Part of SCR-57, Two positions.
Schematic
Picture
BC-10A
Interphone, Aircraft, Part of SCR-57, Two positions, With sidetone.
BC-11A
Receiver/transmitter, AM, Rx 500-1580 KHz, Tx 600-1500 KHz, Part of SCR-68A.
BC-12
Receiver, Aircraft, 350-2000 KHz, Part of SCR-59 & SCR-59A.
Schematic
Picture
BC-13A
Radio set, Rx 500-1500 KHz, Tx 775-1250 KHz, Part of SCR-67A.
BC-14
Receiver, 500-1500 KHz, Galena, French design, Part of SCR-54.
Schematic
BC-14A
Receiver, 500-1500 KHz, Galena, French design, Part of SCR-54.
BC-148
Receiver/Transmitter, CW, 3960-4360Khz, transmitter one type 10 tube, receiver regenerative, 3 type 864 tubes, requires 10 VDC and 400 VDC, Part of SCR-131, TM 11-237.
Schematic
BC-151
Receiver/Transmitter, CW, 4370-5100KHZ, transmitter one type 10 tube, receiver regenerative, 3 type 864 tubes, requires 10 VDC and 400 VDC, Part of SCR-161, TM 11-237.
Schematic
BC-156
Receiver/Transmitter, CW, 2640-3040KHz, transmitter one type 10 tube, receiver regenerative, 3 type 864 tubes, requires 10 VDC and 400 VDC, Part of SCR-171, TM 11-237.
Schematic
BC-186
Receiver, AM/CW, 2.4-3.7 MHz, type 34 rf amp, type 34 regenerative detector, and 2 type 30 af amplifiers, Requires +90, +67.5, -3, -4.5, and 1.5 VDC, Part of SCR-178 and SCR-179, TM 11-231.
Schematic
BC-187
Transmitter, AM/CW, 2.4-3.7 MHz, 30Watts, Type 10 VFO and type 865 PA, Use BC-188 for AM, Requires +500 and 1.5 VDC, Part of SCR-178 and SCR-179, TM 11-231.
Schematic
BC-188
Modulator, Screen Grid, Used with BC-187, Uses two type 30 tubes in parallel to screen modulate the transmitter, Requires 1.5 and 4.5VDC, Part of SCR-178 and SCR-179, TM 11-231.
Schematic
BC-189
Receiver, AM/CW, 0.150-13.0 MHz (13 coil sets), Superhetrodyne, IF 470KHz, 8 tubes, Requires +250 and 7 VDC, Replaced by BC-189A, Part of SCR-177, SCR-180, SCR-188, SCR-193, SCR-209, SCR-210.
Schematic
BC-189A
Receiver, AM/CW, 0.150-13.0 MHz (13 coil sets), Superhetrodyne, IF 850KHz, 8 tubes, Requires +250 and 7 VDC, Replaced by BC-312 & BC-344, Part of SCR-177, SCR-180, SCR-188, SCR-193, SCR-209, SCR-210.
BC-191(*)
Transmitter, AM/CW, HF controlled by plugin tuning units (TU-3, TU-4, TU-5, TU-6, TU-7, TU-8, TU-9, TU-10, TU-22 & TU-26). Output 50 Watts. Requires 1100, 425, and 12-14 VDC. Uses BC-193, BC-194 or BC-204 antenna tuner and BC-196 antenna relay and BC-192 Control Box, Replaced BC-AA-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
Schematic
BC-AA-191
Transmitter, AM/CW, HF controlled by plugin tuning units (TU-3, TU-4, TU-5, TU-6, TU-7, TU-8, TU-9, TU-10, TU-22 & TU-26). Output 50 Watts, Requires 1100, 425, and 12-14 VDC, Uses BC-AA-193, BC-AA-194 or BC-AA-204 antenna tuner and BC-AA-196 antenna relay and BC-192 Control Box, Derived from GE RT-76A, Became BC-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
Schematic
BC-192
Control Box, used with BC-191. Part of SCR-177, SCR-187, SCR-188, SCR-193.
BC-193
Antenna tuner, used with BC-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
BC-AA-193
Antenna tuner, used with BC-AA-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
BC-194
Antenna tuner, used with BC-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
BC-AA-194
Antenna tuner, used with BC-AA-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
BC-196
Antenna relay, used with BC-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
BC-AA-196
Antenna relay, used with BC-AA-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
BC-197
Receiver, Monitor, 100-1000 KHz, TRF, Part of SCR-243.
BC-198
Relay, Antenna, SCR-183.
BC-199
Receiver, 200-400 KHz & 2.5-7.7 MHz, Coil sets, Part of SCR-183.
BC-200
Transmitter, 6.2-7.7 MHz, 3 ea VT-25 & VT-52, Part of SCR-183.
BC-201
Control box, Part of SCR-183.
BC-202
Control box, Part of SCR-183.
BC-204
Antenna tuner, used with BC-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
BC-AA-204
Antenna tuner, used with BC-AA-191, Part of SCR-177, SCR-187, SCR-188, SCR-193, TM 11-800.
BC-205
Loop tuning unit.
BC-206A
Control box, Used with BC-176A and BC-312, Part of SCR-209.
BC-207
Transmitter.
BC-208
Antenna relay, Used with BC-191.
BC-209
Amplifier, RF, 400-1500 KHz.
BC-210
Weather receiver, Same as National R-10 Part of RC-13.
BC-212
Amplifier, AF, Interphone, 39 or 44 tube, Part of RC-15
BC-212B
Amplifier, AF, Interphone, 2 ea 6C5 tubes, Part of RC-27
BC-213
Junction box, Part of RC-13 & RC-15.
BC-214A
Control box, part of BC-189.
BC-215
Control box, Ued with BC-AA-188, SCR-183.
BC-216
Amplifier, Microphone, 6F7 and 39/44 tubes, Used with SCR-183.
BC-217
Antenna tuning unit, 200-300 KHz, Part of SCR-204.
BC-219
Receiver, Aircraft, 0.15-12.5 MHz, Part of SCR-183, SCR-185 and SCR-187.
BC-221
Frequency meter, Family, similar to Navy LM, consisting of 25 models listed below by various manufacturers.
Schematic
Picture
BC-221A
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum Case, Battery powered, Three tubes: 77, 6A7 & 77, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(A), Bendix Radio Corp.
Schematic
Picture
BC-221B
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 2 ea 6SJ7 & 6K8, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(B), Allen D. Cardwell Mfg.
Schematic
Picture
BC-221C
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 76, 6A7 & 77, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(C), Bendix Radio Corp.
Schematic
BC-221D
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 76, 6A7 & 77, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(D), Bendix Radio Corp.
Schematic
BC-221E
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 7G7, 7B8 & 7A4, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(E), Philco Corp.
Schematic
BC-221F
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 6SJ7Y, 6A7 & 76, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(F), Zenith Radio Corp.
Schematic
Picture
BC-221J
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 6SJ7Y, 6A7 & 76, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(J), Zenith Radio Corp.
Schematic
BC-221K
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 6SJ7Y, 6A7 & 76, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(K), Zenith Radio Corp.
Schematic
BC-221L
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 6SJ7Y, 6A7 & 76, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(L), Zenith Radio Corp.
Schematic
BC-221M
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 6SJ7, 6SJ7Y & 6K8, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(M), Bendix Radio Corp.
Schematic
Picture
BC-221N
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 2 ea 6SJ7 & 6K8, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(N), Philco Corp.
Schematic
BC-221O
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 6SJ7, 6SJ7Y & 6K8, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(O), Rauland Corp.
Schematic
BC-221P
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 6SJ7, 6SJ7Y & 6K8, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(P), Zenith Radio Corp.
Schematic
BC-221Q
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum or wood case, Battery powered, Three tubes: 2 ea 6SJ7 & 6K8, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(Q), Allen D. Cardwell Mfg.
Schematic
BC-221R
Frequency Meter, Operates in two bands covering 125-250 KHz & 2-4 MHz fundamental and 0.125-20 MHz on harmonics, Aluminum case, Battery powered, Three tubes: 6SJ7, 6SJ7Y & 6K8, Built-in Crystal calibrator 1 MHz, Part of SCR-211, TM 11-300-(R), Rauland Corp.
Schematic
Copyright 1998 by Bill Beech
Material extracted from noncopyrighted sources.
NJ7P/Jan 1998
Last Modified: Sat Jun 10 23:51:20 2000