6 US-Made 6AQ5 Vacuum Tubes Black Glass Lot Of Six Nonal Bonus Tube These six 12BY7 / 12BY7A

These six 12BY7 / 12BY7A / 12BV7 tubes tested as follows on our Paul Hart-calibrated TV7/U where minimum (65%) is 46:

Minimum (65%) is 32/32 and 100% 66/66

This matched trio of RCA 6BY5GA tubes were tested on our Paul Hart-calibrated TV7/U for shorts

WE CANNOT GUARANTEE FOR FAILURES AFTER POWER UP

6 US-Made 6AQ5 Vacuum Tubes Black Glass Lot Of Six Nonal Bonus Tube These six 12BY7 / 12BY7AThis lot of six US made black glass 6AQ5 output tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 46, 52, 54, 57, 58 and 72 where minimum (65%) is 46 and 100% is 71. It took two adapters but was worth it as all six sounded fine in my Mini 2013. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE