The 40A was a grand old transmitter full of tubes ... This is a general-purpose 50 watt c.w., 40 watt phone bandswitching transmitter, working on 10 through 160 meters. It is intended to ...

Their 1.3 MHz transmitter using the callsign 1BCG seems ... Even then, hundred-year-old tubes are hard to find in 2021, so they could only muster a single working example for the PA.