Matched Pair Tung-Sol 6SD7 6SD7GT Vacuum Tubes NOS-Testing 6H6 Milspec new in box perfectly-matched pair

new in box perfectly-matched pair of milspec Tung-Sol JAN-CTL-6098 / 6AR6WA output tubes was tested on Paul Hart-calibrated TV7/U for shorts

new in box US-made 6SH7 tubes tested to spec on our Paul Hart-calibrated TV7/U

J-slot Cinch TS102U03 / SOS-6 tube shields fit 12AX7-size tubes nicely

These three US-made 6BY5G tubes were tested on our Paul Hart-calibrated TV7/U for shorts

I listened to them in one of my Radio Craftsmen RC-2 monoblock amplifiers with U2's "Achtung Baby" and they sounded great

Matched Pair Tung-Sol 6SD7 6SD7GT Vacuum Tubes NOS-Testing 6H6 Milspec new in box perfectly-matched pairThis new old stock testing 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 21 for Tube One (Emerson BRANDED) and 24 for Tube Two 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 seminal "Magnolia" album and it