Sherman schematics

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there seems to some question and confusion, about 12 volt VS. 24 volt radios in shermans. perhaps a gallery of schematics will help answer the question.




1942 sherman schematic.jpg


1944 sherman schematics.jpg


armor harness

most armored vehicles used woven brass flex conduit with a "garden hose" fitting soldered on the end. the electrical connection was usually a bakelight connector with very small set screws for the wire. and a slide fitting over the set screw section.

Sherman harness1.JPG

Sherman harness2.JPG

Sherman harnes3.JPG

Sherman harnes4.JPG

Sherman harness5.JPG


  • TM 9-759 1943, 1944, 1953
  • TM TM 11-2748, 45. Installation of Radio and Interphone Equipment in Medium Tank M4A3 or M4A3E2, 75-mm Gun, Wet Stowage; Medium Tank M4A1, M4A2, and M4A3, 105-mm Howitzer, 40 pages. PB 80907 - BSIR 7(1):34; 10/03/47