The project is about the size of a standard AA battery which aims to build a single transistor FM transmitter. Having a power supply of 1.5V cell is the main advantage of this circuit. The battery is ...

If you cultivate an interest in building radios it’s likely that you’ll at some point make a simple receiver. Perhaps a regenerative receiver, or maybe a direct conversion design, ...

My first battery-powered radio — a ten-transistor Realtone — came from my Aunt Ina when I was about seven. I used to think I was ten, but the songs from 1973 would be wrong: I distinctly remember ...