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[11] [13] Within 30 minutes, he had assembled the first prototype of his most well-known invention, the wind-up radio. [11] The original prototype included a small transistor radio, an electric motor from a toy car, and the clockwork mechanism from a music box. [14] Baylis filed his first patent in 1992. [15]
Telechron alarm clocks are particularly popular with collectors. Until about 1940, the overwhelming majority of Telechron alarm clocks had bell alarms. The entire mechanism was enclosed in a bell housing of steel. Atop the clock's coil was a metal strip that vibrated at 60 cycles per second when the alarm was tripped.
Voice-tracking has become common on many music radio stations, particularly during evening, overnight, weekend, and holiday time periods. Most radio station owners consider it an economical alternative to employing live disc jockeys around the clock. [2] An old-fashioned automation system capable of voice-tracking.
A standard frequency and time signal service is a station that operates on or immediately adjacent to 2.5 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, and 25 MHz, as specified by Article 5 of the ITU Radio Regulations (edition 2012). [2] The US service is provided by radio stations WWV (Colorado) and WWVH (Hawaii).
The miniature grandfather clock never ticked in Greg Allison's childhood. The clock, just 7 inches high, sat under a rounded glass dome on one of the highest shelves in the library of his family's ...
Round The Clock is an English internet radio service from China Radio International. The broadcast basically rotates between China Drive and the following weekly programs: Monday: Front Line
The last new three-letter call was assigned to station WIS (now WVOC) in Columbia, South Carolina on January 23, 1930. Since then, three-letter calls have only been assigned to stations, including FM (beginning in 1943) [1] and TV (beginning in 1946), [2] which are historically related to an AM station that was originally issued that call sign.
Standard frequency and time signal-satellite service (short: SFTSS) is, according to Article 1.54 of the International Telecommunication Union's (ITU) Radio Regulations (RR), [2] defined as A radiocommunication service using space stations on earth satellites for the same purposes as those of the standard frequency and time signal service.