Matched Pair Tung-Sol 6SD7 6SD7GT Vacuum Tubes NOS NIB Les Dernieres a wisp of the Bugle

a wisp of the Bugle Boy logo and a top-O getter

It will also be also -- as time becomes available -- on our Paul Hart-calibrated TV7/U for a more-familiar point of reference for most

new in box Westinghouse 6X4 tested to spec on our Paul Hart-calibrated TV7/U

53/53 where minimum (65%) is 40/40 and 100% is 62/62

Matched Pair Tung-Sol 6SD7 6SD7GT Vacuum Tubes NOS NIB Les Dernieres a wisp of the BugleThis new old stock, new in box (for Tube Two) matched pair of Tung Sol MANUFACTURED 6SD7GT pentodes was tested on our Paul Hart calibrated TV7 for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 26 for Tube One (Philco BRANDED) and 27 for Tube Two (RCA BRANDED) where minimum (65%) is 15 and 100% is 23. I am playing them in my Musical Paradise MC 3 single ended integrated amplifier as I write with Aimee Mann's