- On sale!
Top quality gray plate round top getter double triodes completely interchangeable with 12AX7, suitable for audio applications. These fine 9-pin glass tubes manufactured for the US military by renowned Sylvania, are printed in green JAN 5751 SYLVANIA U.S.A. with date codes from 1972 to 1979, and are also glass-etched 5751 U.S.A. They are pulled from unused replacement modules from Canadian Armed Forces equipment. Singles, pairs and quads available.