NASHVILLE, Tenn. — The historic RCA Studio A, saved from redevelopment three years ago, on Saturday completed a restoration to its 1960s heyday with the installment of the building’s iconic signs.
An air-cooled 50-watt transmitting tube with 4-pin metal shell base, ceramic insulator, and rugged plate. Light, rectangular anode. GE and old RCA logos stamped on envelope. Base stamped: "Radiotron / ...
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