TV7 minimum good is 56, NOS test score is 86+. Pair(2) 12AU7, Conn label made by Sylvania U.S.A. matched to 5 test points and less. Used tubes but test at or higher than NOS levels. Test score on tubes; representative photos.
TV7 minimum good is 56, NOS test score is 86+. Pair(2) 12AU7, Conn label made by Sylvania U.S.A. matched to 5 test points and less. Used tubes but test at or higher than NOS levels. Test score on tubes; representative photos.