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1949 Zenith
I have a 1949 Zenith with a factory installed telephone jack labeled phone vision. It was tried I guess, in the Chicago area by the telephone company, selling movies for $1.00, a considerable charge back then. The idea didn.t work too well, tv signals through the existing telephone lines back then left a bit to be desired.
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Have worked for about 40 years testing, marketing and manufacturing almost all types of electrical insulation materials. Epoxys, nomex, magnet wire enamels, mica tapes, almost any type of dielectric material out there.
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