(TV7 minimum good test score is 32. TV7 Test score on each tube box. 4) 1960s Tung-sol 12ax7 tubes. Sale is for tubes pictured. All tubes passed preamp tests with no microphonics heard. See pics for Date codes.
(TV7 minimum good test score is 32. TV7 Test score on each tube box. 4) 1960s Tung-sol 12ax7 tubes. Sale is for tubes pictured. All tubes passed preamp tests with no microphonics heard. See pics for Date codes.