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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 ...
Whether you enjoy hunting for a good vintage find or just discovered some old boxes from your grandparents in the attic, you could have a few treasures on your hands. ... Its value is estimated ...
Factory-sealed units have been known to sell for thousands at auctions, with one “exceedingly rare” 4GB model selling for an eye-gouging $190,373 in 2023. Even used ones in good condition can ...
Western Electric Co., Inc. was an American electrical engineering and manufacturing company that operated from 1869 to 1996. A subsidiary of the AT&T Corporation for most of its lifespan, Western Electric was the primary manufacturer, supplier, and purchasing agent for all telephone equipment for the Bell System from 1881 until 1984, when the Bell System was dismantled.
Between 1932 and 1935, Stuart Turner produced the small (1/2 HP) type N engine, which had an overhung crank. This model seems to have been superseded by the type R 2-stroke engine, which was introduced in 1934 with a full width crank. The R2 being 84 cc, and the R3 having a larger bore size and hence 123 cc.
The most notable examples of telephones constructed from the handset mountings, are the model 102 and the model 202 telephones, variants which differed in their electric circuitry, with improvements of speech performance. In addition, the type C, and later type G, handset mountings were small wall-mounted units for hanging up the handset.
Price on Etsy: $1,650 While most blow molds are 100% plastic, this Santa face from the ’50s embedded in a wood frame is the only plastic piece classifying this decoration as a blow mold.
The first field telephones had a battery to power the voice transmission, a hand-cranked generator to signal another field telephone or a manually-operated telephone exchange, and an electromagnetic ringer which sounded when current from a remote generator arrived. This technology was used from the 1910s to the 1980s.