4 Super Silvertone 12A8 12A8GT Vacuum Tubes Valves Lot Of Four 7172 Tube One has some oxide

Tube One has some oxide flaking

These eight new old stock

MOST OF THE TUBES WE SELL ARE OVER 50 YEARS OLD

It measured 84/82 where minimum (65%) is 50/50 and 100% is 77/77

Tube Two tested 24

4 Super Silvertone 12A8 12A8GT Vacuum Tubes Valves Lot Of Four 7172 Tube One has some oxideThese four Super Silvertone 12A8GT tubes were tested for shorts, gas and transconductance on our Paul Hart calibrated TV7 U and measured as follows: 32, 32, 36 and 48 where minimum (65%) is 29. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT