SCR-245

The SCR-245 Radio was a mobile Signal Corps Radio used by the U.S. Army before and during World War II, for short range ground communications, It was one of the first crystal sets used by the Army.

Use

The SCR-245 was standardized on 10 June 1937, and used by Armored forces for command and control of tank units. it replaced the earlier SCR-189 and was used primarily in the early M2, M3 light tanks as well as the early M3 medium tanks. the sets large size required it to be mounted in the tanks sponsons. it was replaced by the SCR-508 sets.

Components

• BC-223 Transmitter AM, CW/voice, 4 X-stals, 2.0 Mc to 4.5 Mc, 10 Watts, range CW-45Mi. Voice 20 Mi.
• BC-312 Receiver
• PE-55 Dynamotor (12Volt input) or PE-125AX, or PE-135AX
• MP-14 or MP-37 mast base and 15 foot whip antenna
• BX-42 spare parts
• TU-17
• TU-18
• TU-25-A
• BX-19
• BX-20
• BX-21
• CS-56

Variants

• SCR-210 Receiver only set
  • -A M2A3 light tank
  • -B M2 medium tank
  • -C M2A4 light tank
  • -D M3A1 scout car
  • -E M1A1 light tank
  • -F M2A1 medium tank
  • -G M3 light tank
  • -H M3 medium tank
  • -I ?
  • -J 75mm GMC (M7 priest)

Reference Files

TM 11-272 Feb. 1942

WAR DEPARTMENT TECHNICAL MANUAL RADIO SETS SCR-210A THROUGH SCR-210J AND SCR-245A THROUGH SCR-245N AND SCR-245P FEBRUARY 23, 1942

TM 11-310

Schematic Diagrams for Maintenance of Ground Radio Communication Set

October 1942