crystal earphone
1Crystal earpiece — Crystal radio using piezoelectric earpiece Common piezoelectric earpiece used with portable radios A crystal earpiece, more properly called a piezoelectric earphone …
2Crystal radio — Crystal set redirects here. For the Australian rock band, see The Crystal Set. A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sliding contact (right) up and down the tuning coil (red). The device… …
3crystal set — noun a simple early form of radio receiver with a crystal touching a metal wire as the rectifier and lacking an amplifier or loudspeaker, necessitating headphones or an earphone …
4Cat's-whisker detector — Galena cat s whisker detector Precision cat s whisker d …
5Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …
6List of historic technological nomenclature — Below is a list of historic technological nomenclature. Included items are important technical terminology and a system of words used to name things in a particular process, method, or device in history. As technologies evolves, names are… …
7Edwin Howard Armstrong — Edwin H. Armstrong Developed and advanced the utility of FM technology. Born December 18, 1890(1890 12 18) New York, New York U.S …
8AM broadcasting — is the process of radio broadcasting using amplitude modulation.HistoryAM was the dominant method of broadcasting during the first eighty years of the 20th century and remains widely used into the 21st.AM radio began with the first, experimental… …
9List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… …
10Transducer — A transducer is a device, usually electrical, electronic, electro mechanical, electromagnetic, photonic, or photovoltaic that converts one type of energy or physical attribute to another for various purposes including measurement or information… …
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