Transmitter of the VHF radio communication equipment family MQ-508/MQ-608.
Push buttons selection from ten pre-tuned crystal-controlled channels.
Used by the US military during WW2, designated BC-604/BC-684.
Used by the IDF during the War of Independence (1948) and the Sinai Campaign (1956).
Frequency ranges: MH-604 – 20 to 27.9 MHz, MH-684 – 27 to 38.9 MHz; PM (Phase Modulation); 80 or 120 channels in 100 kHz steps; output power: MH-604 – 30 Watts, MH-684 – 20 Watts.
Powered by DC 12 Volts (using dynamotor DM-35) or 24 Volts (using dynamotor DM-37).
Vacuum tube technology.
