Lighting manufacturer TCP of Aurora, Ohio, recently donated 1,150 three-watt cold cathode lamps to light the marquee of the Ohio Theater in Cleveland's Playhouse Square, replacing the theater's ...
A 4-pin plastic base with glass T-shaped envelope. Radiation symbol stamped on envelope. Donor’s card reads: “Cold cathode tube made by Western Electric for use in modern [about 1962] telephone ...
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