To wit, we present this compact two-tube “spy radio” transmitter. From the look around his shack — which we love, by the way — [Helge Fykse (LA6NCA)] really has a thing for old technology.

[Mr. Carlson] bought a Globe Scout Model 40A ham radio transmitter at a hamfest. The 40A was a grand old transmitter full of tubes, high voltage, and a giant transformer. It is really interesting ...

This strengthened the current through the tube, amplifying weak telegraph ... which would increase the output of a radio transmitter and produce alternating current. He didn't see the worth ...

CULLMAN, Ala. (WHNT) — The National Weather Service in Huntsville said Sunday evening that the NOAA Weather Radio Transmitter in Cullman will be offline until further notice. Those who live in ...