Military HF Radio Transceiver BC-654-A.Transceiver BC-654-A was made in the technology of electronic tubes and it worked in the frequency range from 3.8 MHz to 5.8 MHz amplitude modulated (AM) telephony and telegraphy (CW). Frequency of receiver and transmitter was setting separately, continuous. They were placed in the same case. The device reached the maximum output power of 17 W at the AM modulation, and 24 W with the CW telegraphy.Transceiver BC-654-A was powering on with 6 VD...C or 12 VDC voltage from lead battery, over vibrator converter type PE-104 and dinamo converter type PE-103. Technical Specification: Frequency Range: 3.8 MHz to 5.8 MHz; Modes of Operation: CW and AM; Output power of transmitter: 17 - 24 W; Power Requirements: 6 VDC or 12 VDC voltage from lead battery; The unit is not tested!l sell it only for parts or collection.In very good condition as seen on the pictures.