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Topic: Rotary dial

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	Rotary dial - Wikipedia, the free encyclopedia
		The rotary dial is a device mounted on or in a telephone or switchboard that is designed to send interrupted electrical pulses, known as pulse dialing, corresponding to the number dialed.
		The device was phased out from the 1970s onwards with the onset of touch tone dialing, which used a telephone keypad instead of a dial.
		In the U.S., rotary dial phones were sometimes equipped with apparatus blanks—a piece of plastic or metal blocking the opening in the telephone's housing–in place of having a dial.
	en.wikipedia.org /wiki/Rotary_dial (697 words)

	Spark Fun Electronics (Site not responding. Last check: 2007-10-20)
		This is the rotary in the finished, or non-turning position.
		When the dial has returned to the finished state, the center brass column exhorts pressure on the fl pin, opening the very bottom paddle.
		There are two complimentary paddles (one for the hook circuit and one for the rotary circuit) that are connected to ground.
	www.sparkfun.com /tutorial/Port-O-Rotary/portable-rotary.htm (2020 words)

	When Dials Were Round and Clicks Were Plentiful
		To hear him lovingly describe its clickety dial, the chime of its two-toned ringer and the shiny Bakelite handset (the size and weight of which make him feel small in comparison when he picks it up), Walz could just as well be referring to a long lost toy truck, or even an old teddy bear.
		Many people who collect rotary dial phones are looking to recapture a piece of their childhood, said Jonathan Finder, a pediatric specialist in Pittsburgh who sells vintage phones through his Web site, www.oldphones.com.
		Rotary dial phones were introduced to American consumers in 1919, said Sheldon Hochheiser, the corporate historian at ATandT, but they did not become widely used until the mid-1950's.
	www.oldphones.com /nytimes.html (1266 words)

	Retro Rotary Dial Phones. Your source for vintage rotary telephones.
		Made years ago in the USA, but never used.
		Cleaned and tested for sound quality, smooth dialing.
		Email at info@rotarydialphones.com and we may have it.
	www.rotarydialphones.com (116 words)

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