WebThe Sparks-Withington Company of Jackson, Michigan, was founded in 1900 by the Withington brothers, Philip and Winthrop. Within a matter of months they were joined by Captain William Sparks, who would go on to be a key figure in the company's development. The new company grew quickly and within the space of a few years it WebPresumably The Sparks Withington Company designed the circuit in this manner to avoid having to pay licensing fees to RCA required to use the patented and more typical type of circuit. Sparton manufactured virtually all of the components used within its radios, did things its own way, and seemed to be very proud of this fact.

Link Trainer - Wikipedia

http://www.tuberadioland.com/sparton_history.html Web14. máj 2011 · The Sparks-Withington Co. of Jackson, MI has a long history, claiming to have introduced the first all-electric radio in 1925. In the '50s it produced a series of small elliptical table radios. This example, of ivory plastic, turns out to be a quite conventional five-tube (mixed peanut and octal) broadcast-band AM radio. ... bausatz bus

Peek Through Time: Jackson

http://www.theradiofox.com/sparton/index.html WebLink Trainer. The term Link Trainer, also known as the "Blue box" and "Pilot Trainer" [1] is commonly used to refer to a series of flight simulators produced between the early 1930s and early 1950s by Link Aviation Devices, founded and headed by Ed Link, based on technology he pioneered in 1929 at his family's business in Binghamton, New York. http://www.tuberadioland.com/spartonmain.html tinchlik plaza