(click thumbnail)A beautiful RCA BTA-1R is freed after years entombed behind some remodeling. The transmitter is now at the home of a Pennsylvania ham who plans to put it on 160 m shortwave. Ever ...

If you are involved in any sort of radio transmission, you probably have at least heard of SWR or standing wave ratio. Most transmitters can measure it these days and most ham radio operators have ...

[Mikrowave1] wanted to build an authentic 1930s-style ham radio station that was portable. He’s already done a regenerative receiver, but now he’s starting on a tube transmitter that runs on batteries ...