I joined the Army shortly after getting the ham radio station setup.
When keyed up, the dynamotor power supply would lower the 6 volt battery system, the engine would slow down and the lights would dim.
It was magical. The single frequency Home brew 6146 transmitter would put out 6Ø watts, AM plate modulated.
It worked quite well and had excellent audio. I Worked a lot of stations in the Philadelphia, PA area while I was stationed there in the Army.
Notice the separate power supply for it. The transmitter is sitting on it. The receiver drifted badly.
This arrangement worked quite well, but with no AVC, if a mobile got near it was overload city.
I was still rock bound in the early 6Ø's.