Browse Items (6 total)

  • Tags: Technical Manual

b1f44a - tech doc on WJLD beacon 11-10-1948.jpg
"Box 1 folder 44 is an instruction sheet for a, it looks like a tower beacon from June of 1948; the original instruction sheet was from 1942, this is some kind of an update. Could very well have been for one of the JLD beacons; it was found in the…

B1f40a - 1947 technical data report on WJLD antenna.jpg
"Box 1 and we are at folder 40, which is a 10 page report of antennae system resistance and reactants for radio station WJLD (Johnston Broadcasting Company) in Bessemer in September of 1947. It’s a technical document produced by Claude M. Gray,…

b1f37a - NC 108 Receiver Instruction Manual  1947.jpg
"We move now to box 1 number 37, yup. Folder 37 is nine page instruction manual for the national model NC108 FM receiver. From notation on the back cover, we are approximating this as 1947 booklet. We think that some of these companies probably…

Multi Range 856 Tester cover- July 1941  7 pages.jpg
"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 documents at JLD…

Shure mic p1 specs July 1941.jpg
"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 system."

General Radio Co - frequency monitor instruc0001.jpg
"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 in the appendix…
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