Training Regulations

• TR 1210-5 Airplane Radio Set, Type SCR-134, and Receiving Equipment use in Conjuction Therein (20 May 1929)
• TR 1210-20 Radio Set, Type, SCR-136 (10 December 1930)
• TR 1210-30 Radio Set, Type, SCR-132 (16 July 1931)
• TR-1210-31 Radio Set Type [[SCR-171] 1932-12-01
• TR-1210-32 Radio Set Type SCR-163 and Power Equipment Type PE-46 1933-01-01
• TR 1210-50 Radio Sets Type SCR-131 and SCR-161 1932-07-01
• TR 1210-70 Radio Set, Type, SCR-189 and SCR-190 (11 September 1934
• TR 1215-5 Signal Corps. Battery Charging Set, Type SCR-82 (15 March 1930)
• TR 1215-6 Signal Corps. Charging Set, Type SCR-169 (14 July 1932)
• TR 1215-10 Signal Corps. Code Practice Equipment, Type EE-81 (26 March 1930)
• TR 1220-5 Signal Corps. Reel Unit RL-26 (29 October 1936)
• TR 1225-5 Signal Corps. Telephone Switchboard, Type BD-14 (12 February 1930)
• TR 1230-5 The Buzzerphone, Type EE-1-A (6 December 1929)
• TR 1236-1 Meteorological Message For the Artillery (20 June 1934)
• TR 1255-1 The Homing Pigeon (30 October 1936)
• TR 1265-10 Signal Corps. Signal Corps Test Set, Type EE-65 (16 June 1931)