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  2. Telephone magneto - Wikipedia

    en.wikipedia.org/wiki/Telephone_magneto

    A telephone magneto is a hand-cranked electrical generator that uses permanent magnets to produce alternating current from a rotating armature. In early telegraphy , magnetos were used to power instruments, while in telephony they were used to generate electrical current to drive electromechanical ringers in telephone sets and activate signals ...

  3. Field telephone - Wikipedia

    en.wikipedia.org/wiki/Field_telephone

    This phone is fully interoperable with the EE-8, TA-1, TA-43 and TA-312 series of US Field Phones. EE-8 A part of The Marshall Plan (from its enactment, officially the European Recovery Program, ERP) The EE-8* was used in USA from World War II to late seventies, and in Norway from World War II until the TP-6 could replace it.

  4. History of the telephone - Wikipedia

    en.wikipedia.org/wiki/History_of_the_telephone

    In phones connected to common battery exchanges, the ringer box was installed under a desk, or other out of the way place, since it did not need a battery or magneto. Cradle designs were also used at this time, with a handle with the receiver and transmitter attached, separate from the cradle base that housed the magneto crank and other parts.

  5. Western Electric hand telephone sets - Wikipedia

    en.wikipedia.org/wiki/Western_Electric_hand...

    A typical Western Electric hand telephone set of c. 1930. It consists of a handset mounting with the handset held in a cradle, and a subscriber set mounted against a wall or vertical surface in close proximity. Shown is a B1A hand telephone set, also known as the type 102B-3 hand telephone set.

  6. Candlestick telephone - Wikipedia

    en.wikipedia.org/wiki/Candlestick_telephone

    A Western Electric desk stand telephone of the 1920s and 30s. The candlestick telephone (or pole telephone) is a style of telephone that was common from the late 1890s to the 1940s. A candlestick telephone is also often referred to as a desk stand, an upright, or a stick phone. Candlestick telephones featured a mouthpiece (transmitter) mounted ...

  7. Feldtelefon 50 - Wikipedia

    en.wikipedia.org/wiki/Feldtelefon_50

    The field telephone 50 is used by all communication troops of the Swiss Army for both point-to-point connections and landlines. For the first variant, two field telephones are connected with telephone wire. In the second version the phone is connected to lines specially reserved for the army. Such a linked phone is accessible from any telephone.

  8. Party line (telephony) - Wikipedia

    en.wikipedia.org/wiki/Party_line_(telephony)

    A group camp, a pack station and 81 cabins all communicate by magneto-type crank phones. One ring is for the pack station, two rings is for the camp and three rings means "all cabins pick up." [51] There are also eight emergency telephone stations located along the hiking trail. [52] The system is a single wire using the ground as a return path ...

  9. Rotary system - Wikipedia

    en.wikipedia.org/wiki/Rotary_system

    In the rest of the United Kingdom, the telephone system was operated by the British Post Office (later British Telecom), which had installed a Rotary exchange at Darlington (10 October 1914) and Dudley (9 September 1916), but subsequently decided to use the Strowger system in small and medium cities and the Director system in London (from 1927 ...

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