Some of the military radio junk I've owned or operated or junked or repaired "in my youth"
BC-342/348 HF receiver. In the 50's / early 60's for their price they were not a bad receiver
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So called "Command" sets. These were low power. Top two are transmitters, bottom receivers. They came in different frequency ranges, all the way from below the broadcast band (250 or so khz) on up into the HF region
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AN/ARC-2 HF transmitter-receiver, the one I infamously damn near killed myself with (1200VDC)
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TCS-12 set, HF. The unit to the right is the power supply, "dynamotors." These were DC powered motors which ran off 12 or 24VDC and had a generator wound on the same armature as the motor. This generated the desired HV operating potentials, typically 250V or so for the receiver, and ?? 800 for the transmitter
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