Rufus Turner W3LF
Hackaday report on the first African-American radio amateur Rufus Turner W3LF
Turner was born on Christmas Day, 1907 in Houston, Texas. At the age of 15, he became fascinated by crystal diodes and published his first article about radio when he was 17.
In 1925, still a teenager, he built what was then the world's smallest radio set.
In the 1940’s, working with the Sylvania company, he helped to develop the 1N34A germanium diode (you can still buy these if you look around for them).
In 1949, predating commercial availability, Turner published an article “Build a Transistor” in Radio Electronics magazine–the first time most electronic hobbyists had any exposure to this kind of device.
In January 1950, he published "A Crystal Receiver with Transistor Amplifier" in Radio and Television News, along with plans for a three-transistor radio circuit.
Read the full Hackaday article at
[Last edited Feb 18, 2016 05:29:27]