crystal set


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Related to crystal set: Crystal radio

crystal set

An early type of radio. The first type of radio had only five components: an antenna that picked up the signal, a wire tuning coil with which the listener selected the station, an earphone to hear the broadcast, a ground wire to dissipate the electricity, and at the heart of the apparatus, a crystal detector that produced the audible signal. The crystal was a tiny chip of crystalline ore or stone such as galena. Generations of youths built the sets from scratch and spent hours hunched over the device to hear broadcasts from nearby stations. The reception range tended to be limited, so the introduction of diode tubes that increased reception marked the end of crystal sets' popularity.
See also: crystal, set
References in periodicals archive ?
The late Mr Walker amassed a collection of more than 500 radios, telephones, phonographs, gramophones, radiograms, record players, crystal sets, and TVs dating from the end of the 19th Century to the 1970s.
Glass and crystal sets, including decanters, rose just 1 percent, as did glass and crystal drinkware.
It is particularly special because it has been signed by LE Bertrand, who organised the Secret Press and operated the crystal set, and Reginald Warley who manned the typewriter.
A lucky fan on every flight also received either a Boro shirt or champagne and crystal set courtesy of the airport.
com is treating 250 of you lovely lot to travel- sized versions of Germaine De Capuccini's complexion care products in its Crystal Set, worth pounds 15 each.
It's an Art Deco vintage-style crystal set stainless steel bracelet mother of pearl dial watch, pounds 110 by Rotary, and perfect for the season's tailored pencil skirts and nipped in waists.
In the dining room, colorful glazed dessert ware and glittering crystal set the stage for an intimate family dinner, while the kitchen offers a special insight into the Frick's spirit of generosity and family traditions.
Some boxes carry miniatures set beneath glass, while others are of rock crystal set in gold mounts, and therefore transparent in a beautiful way.
Pictured above, it shows her father, his grandmother and their dog Peter listening to one of the first Marconi broadcasts using a home-made cats whisker crystal set made by Mrs Cole's father.
I built my own crystal set, put the aerial up on the roof and the first station I got on these little two-dollar headphones was Wolfman.
Sensuality oozes out of the seams, Razor Valentine a strung out bluesy torch song that sounds like it's emerging from some 40s crystal set while Pirate Moon is the sound of twilight shadows rippling across yearning hearts.
It's interesting to see what delighted the ears of crystal set owners on that opening night.