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Last modified 2025-12-15

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BC-721-A and BC-721-B (USA, WWII)

A picture of BC-721-A and BC-721-B (USA, WWII)

SPECIFICATIONS

GENERAL
Type:Military HF transceiver
Frequency range:3.5-6.0 MHz
Tuning steps:Channelized
Frequency stability:Max ? ppm
Mode:AM
Channels / memory management: 1 regular
XTAL controlled
Duplex shift / offset:No
Power supply:1.5 VDC (Filament battery) and 103.5 VDC (Anode battery)
Jones connector
Current drain / power consumption:RX: 250 mA (Filament) and 11 mA (Anode)
TX: 300 mA (Filament) and 35 mA (Anode)
Antenna impedance / connector:- / Telescopic whip
Hi-Z / Banana jack?
Dimensions (W*H*D):100*430*130 mm (3.9*16.9*5.1")
Weight:2 Kg (4.4 lb)
Other features:




RECEIVER SECTION
Receiver system: ? conversion superheterodyne
Sensitivity:3 to 5 uV (No S/N reference)
Squelch sensitivity:
Selectivity:
Image rejection:
AF output power / speaker:? mW at ?% distortion / ? ohm
External speaker connector:Jones connector




TRANSMITTER SECTION
RF output power:360 mW
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / Jones connector
Microphone input level:? mV




MISCELLANEOUS
Manufactured:USA, 1942-194x (Discontinued)
Additional info: Part of the SCR-585-A and B radio sets.
Five tubes. Was used in WWII gliders i.e. Waco CG-4A "Hadrian".
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
BA-37
BA-38
BC-722-B
FT-295-B
MC-355
MC-365-B
Filament battery
Anode battery
Radio control box
Mounting
Control shaft
Control shaft
A picture of SCR-585-B radio set (US WWII)