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Black Northern Electric Transmitter Cup for candlestick and wood wall telephones
The plane body is white throughout with a clear propeller
no touch has been overlooked
7th Conductor - Orange
The hook used on Western Electric 201 wall telephones
Rotatone EXT - Pulse to tone Converter Featured Products Black Northern Electric Transmitter CupRotary dial phones emit a series of electrical pulses that are used by the equipment at the central telephone office to route the telephone call to the appropriate destination. Dialing a "9", for instance, on a rotary dial will emit nine electrical pulses spaced approximately 1 10 of a second apart. Modern touch to phones accomplish call routing by emitting distinct tones for each number pressed on the keypad, and it is the tones that are used for
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