The regenerative radio is long-ago superseded in commercial receivers, but it remains a common project for electronics or radio enthusiasts seeking to make a simple receiver. It’s most often seen for ...

We like regenerative receivers. They perform well and they are dead simple to create. Example? [Radio abUse] modified a few existing designs and built a one-transistor receiver. Well, one transistor ...

I recently did a very popular post about Ron Quan’s regenerative radio. Ron was nice enough to send me the schematic. I also added it as an update to the original blog, but I figured you would want me ...

Sixty-one years ago, on January 31, 1954, Edwin Armstrong, who invented the regenerative, super regenerative, and superheterodyne detector circuits for continuous-wave and amplitude modulation and the ...

Marked: "Manufactured by / The Radio Shop / 1120 N. Ashland Ave. / Chicago, Ill. / Log Beach, Cal. / Sunnyvale, Cal. / Under Armstrong U.S. Patent / No. 113149". Specimen is a regenerative detector ...

Marked: "Grebe Radio (trade mark) / Richmond Hill, N.Y. / Type CR-5 / 150 to 3000 M / Licensed Under Armstrong Patent 1113149, Oct. 6, 1914 / Licensed Under Marconi Patent 783772, June 28, 1904." This ...