PRC-6 Radio
UPDATED 4/29/2023 Beginnings of some notes on the hand held Radio Set AN/PRC-6 FM radio. There is lots of information on the Web regarding these radios so I will just […]
Military Tactical Radios
GENSETS for AN/GRC-109 – RS1 and RS-6 Radio Sets
UPDATED 4/28/24 Known Gasoline GENSETS for, or usable with the AN/GRC-109, RS-1 and RS-6 systems: My favorite sets for field Ops. The UGP-12. 125 Watts, 115 VAC, 400 cps, 2-stroke […]
Coastal River Division 21 Comm Center
CRD21 Comm Center: Well, lets start here because this is one place the boats communicated with (and this site is about Combat Comms!). We built a shore Comm Center in […]
GRC-9 Receiver Dial and Panel Illumination
UPDATED: July 29, 2026The dial light in the GRC-9 receiver is pretty dim. I thought about shunt powering an LED off the receiver B+ line via a dropping resistor but […]
R-390A HF Receiver
Updated 2/7/2022 I have had my Collins-designed receiver for many years, it is superb on CW as one would expect and it sounds good on AM. Probably hard to beat […]