A collection of instruction memorandums, technical regulations, and other information regarding radios and electricity. Possibly used to teach classes on radio communications and repair at the Field Artillery School.

Cataloger-devised title. 18 items bound in 1 volume. Items dated between 1932 and 1943. Technical regulations are publications of the War Department. The remaining items are publications of Fort Sill.

Group instructors notes --Communication systems of the Field Artillery -- Electrical interference and suppression -- T-30 - Instruction memorandum - Electricity and magnetism - I -- T-31 - Instruction memorandum - Electricity and magnetism - II -- T-32 - Instruction memorandum - Electricity and magnetism - III -- T-33 - Instruction memorandum - Electricity and magnetism - IV -- T-34 - Instruction memorandum - Radio theory - I -- T-35 - Instruction memorandum - Radio theory - II -- T-36 - Instruction memorandum - Radio theory - III -- T-37 - Instruction memorandum - Radio theory - IV -- T-38 - Instruction memorandum - Radio theory - V -- T-39 - Instruction memorandum - Radio theory - VI -- TR 1215-4 - Technical regulations No. 1215-4 - Frequency meter set SCR-211-A -- TR 1210-50 - Technical regulations No. 1210-50 - Radio sets, types SCR-131 and SCR-161 -- TR 1210-21 - Technical regulations No. 1210-21 - Radio sets, types SCR-178 and SCR-179 -- TR 1210-52 - Technical regulations No. 1210-52 - Radio sets SCR-194 and SCR-195 -- TR 1210-73 - Technical regulations No. 1210-273 - Radio sets SCR-210-A, SCR-245-A, SCR-245-B, SCR-245-C, and SCR-245-D.