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 ...
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 ...
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