Browse Items (13 total)

  • Tags: Technical Manual

Multi Range 856 Tester cover- July 1941  7 pages.jpg
Box 1 Folder 10: "This is box 1 number 10 dated July of ’41. Instructions for operating precision series A56 dual sensitivity multi-range tester: again one of the technical spec publications that were most likely found in the drawer of similar…

Shure mic p1 specs July 1941.jpg
Box 1 Folder 9: "Box 1 number 9. From July of 1941, it’s a data sheet describing Shore Brothers microphone model 555A. It could have been received from Ben Franklin; it also could have been in the files of WJLD in the technical section of its file…

General Radio Co - frequency monitor instruc0001.jpg
Box 1 Folder 6: "Box 1 folder 6 is from 1940 approximately. It’s a General Radio Company pamphlet, an instruction manual for a Type 25 A Broadcast Frequency Monitor with schematics. We approximated the year based on the availability of tubes listed…
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