[GreenKeys] More on Jack fields

[Sheldon Daitch]

I located two manuals I had for the ICS systems operated
by Regional Communications Group, 1st Signal Brigade,
during the Vietnam days, and it appears we may have had
a combination of both T-R-S and T-S DC patch panels.

I've made a few scans of the appropriate drawings and
should anyone like, please send me a note and I
will forward the scans.  Four files, but not large PDFs.

73
Sheldon