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Detector receiver circuit diagrams

The "UnFETtered Crystal Radio"
The "UnFETtered Crystal Radio"
July 2, 2010

The "UnFETtered Crystal Radio [more]

Nostalgic Crystal Radio
Nostalgic Crystal Radio
June 24, 2010

The AM signal is captured by the antenna , 10 mt long horizontal wire, WELL insulated from earth (I mean distant, to lower the stray capacitance coupling with ground which will adsorb some signal ).... [more]

Crystal Radio Circuits
Crystal Radio Circuits
April 30, 2010

The crystal radio gets its name from the galena crystal (lead sulfide) used to rectify the signals. A "cat's whisker" wire contact was moved about the surface of the crystal until a diode junction was... [more]

The Simplest Radio Receiver
The Simplest Radio Receiver
April 13, 2010

Simple AM radio receiver. No power required. [more]