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Perikon detector
Arcane Radio Trivia | December 29th 2009 by Jose Fritz
Strange as it may seem, the crystal in crystal radios wore out. The rectifier was a contact metal–semiconductor point-contact junction, aka a Schottky diode. I mentioned this once before so I wont get too much into the diode. But suffice it to s read more
Oatmeal Box Radios
box vox | December 8th 2009 by box vox
Photo from The Rocketeer’s Flickr Photostream Quaker Oats came out with their cylindrical box in 1915, coincidentally coinciding with the popularity of home-brewed crystal radio sets.Young boys were at the forefront of the broadcasting moveme read more
CRYSTAL RADIO
Mad of science | August 2nd 2009 by ARASARAJA
A crystal radio is the distilled essence of a radio. It has very few parts, it needs no batteries or other power source, and it can be built in a short time out of things you can find around the house. The reason a crystal ra read more
Emergency Radio
Circuit Electronic | July 14th 2009 by Quick Zone
Emergency Crystal Radio Crystal radio requires no power supply to operate because it uses energy from the signals it receives. Performance is – like one should expect – poor. Nevertheless, with a good antenna and proper ground, it shouldn read more
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