Matched Pair RCA 6K6 6K6GT Vacuum Tubes Gray Glass Quintet 6K This Moss Music Group DBX

This Moss Music Group DBX pressing has no surface noise but a very few pops and ticks

A seven out of ten

new in box Sylvania 9JW8 tubes tested to spec on our Paul Hart-calibrated TV7/U

This new old stock-testing Raytheon 6L7 tube was tested on our Paul Hart-calibrated TV7/U for shorts

These are truce 6CG7s with shields between the triodes for reduced cross talkt

Matched Pair RCA 6K6 6K6GT Vacuum Tubes Gray Glass Quintet 6K This Moss Music Group DBXThis matched pair of RCA MANUFACTURED gray glass 6K6GT tubes was tested on our Maxi Matcher tube tester with 325 volts on the plates and a bias of 36 volts. Tube One drew 18. 3 milliamps' plate current while Tube Two drew 19. 6. Transconductance was 1370 for Tube One (Admiral LABELED, RCA MANUFACTURED) and 1350 for Tube Two (Philco LABELED, RCA MANUFACTURED) where new nominal is within one standard deviation of 1900. As I write, I am playing them in