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M38 Radio Power Cable/Connector
Posted: Wed May 01, 2024 1:22 pm
by Lyle
Need assistance to findout the pin-outs for the 3-pin power connector
Posted: Wed May 01, 2024 1:42 pm
by wesk
US Army Signal Corp Radio diagrams in my photo album page 2.

Looks like C pin is not use. A - Plus 24V and B - Ground
Large file photo link:
http://willysmjeeps.com/v2/modules/gall ... _28372.jpg
Posted: Wed May 01, 2024 2:10 pm
by Lyle
As always, Thank you Wes!
Posted: Wed May 01, 2024 4:14 pm
by RonD2
If it helps, I have the 65 page (pdf file) of the January 1956 Installation Instructions for Radio Sets GRC-9 or SCR-694 in Combination With Radio Sets GRC-3 to -8, VRC-1 to -3, VRC-8 to -10, VRC-16 to -18, PRC-8 to-10, and SCR-619 for the M38 and M38A1.
It has the drawing that Wes provided above, as well as dozens of others for cables, brackets, and mounts, including antennas.
I'd be glad to email, or perhaps it could be posted in the radio manuals section of the downloads page?
Posted: Sun May 05, 2024 6:07 am
by Pierre
Ron, that would be appreciated if you can upload it on the website (download page).
Thanks
Posted: Sun May 05, 2024 4:42 pm
by RonD2
Hi Pierre,
I'm not allowed to upload stuff on the website.
I'd be glad to email it to Wes so he can upload it to the radio manuals section of downloads.
Posted: Thu May 09, 2024 3:29 pm
by Lyle
Please email me: lylew2@gmail.com
Posted: Thu May 09, 2024 4:18 pm
by RonD2
Hi Lyle,
I just now discovered that the email server I use has an attached file size limit so I can't send it via email.
I did go back and research where I originally found it --- and here's the link so you can see and download it for yourself:
https://radionerds.com/images/5/5d/GRC- ... nstall.pdf
Hope this helps.
Sorry for the confusion.
Good luck!
Posted: Thu May 09, 2024 8:56 pm
by wesk
Lyle, Did you loose the copy I sent you last week?
Posted: Thu Jun 13, 2024 7:50 pm
by Lyle
Wes & Ron:
Thanks gents I have recieved the various manuals..
Slow response as I took the train from Vancouver to Halifax and drove around the maritimes... awesome trip.