R-123

R-123 "Magnolia" (Р-123 «Магнолия») is a Soviet military HF/VHF radio transceiver designed for use in tanks and other armoured vehicles. The device was made in the Ryazan radio plant.

Deployment
The R-123 set was commonly used in conjunction with the R-124 intercom system in armoured vehicles. Introduced in the early 1960s, the R-123 set was also adopted by other Warsaw Pact members and exported to countries such as Finland, Egypt, and Iraq.

R-123

 * FM, superheterodyne radio transceiver. Circuitry consists of 32 valves and various semiconductor devices.
 * Tuning system: In addition to manual tuning, up to 4 preset channels can be selected using a motorized servo system.
 * Frequency range:
 * Band 1 = 20.00 - 35.75 MHz
 * Band 2 = 35.75 - 51.50 MHz
 * Channel spacing: 25 kHz
 * 1,260 total available channels
 * Transmitter power: 20 W
 * Range: 20 km
 * Antennas:
 * Tank rod antenna: 4 m
 * Telescopic antenna: 6 m
 * Operating temperature range: -40 to +50 °C
 * Dimensions: 428 × 225 × 178 mm
 * Weight: 25 kg

BP-26 power supply unit

 * Transistorized inverter
 * Input voltage: 26 V
 * Output voltages: + 1.2 V, + 6.3 V, + 150 V, - 150 V, + 250 V and + 600 V
 * Dimensions: 210 × 164 × 218 mm
 * Weight: 7 kg