From the receiving side of the circuit, the antenna was made of random wire coupled with the inductor L1 having a single turn while inductor L2 has 4 turns wound around a 35 mm film container. Both ...
The VHF super regenerative receiver has been trimmed down to a single transistor without compromising its tremendous sensitivity and selectivity while maintaining the same clear audio. The original ...
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 ...
We’ve heard it said before that you should build things twice. Once to learn how to build it and the second time to build it right. [AA7EE] must agree. He was happy with his homebrew regenerative ...
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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