3 Sylvania 25L6 25L6GT Vacuum Tubes Valves Tall Base Gray And Silver Bottles Lot Of Three Matched Pair 7C5 new in box Sylvania 6SH7

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

Tube One measured 56/58 while Tube Two measured 59/56 where minimum (65%) is 50/50 and 100% is 77/77

Tube One measured 73/74 while Tube Two measured 78/75 where minimum (65%) is 50/50 and 100% is 77/77

this unique -- and nicely-framed -- work of art captures the raw

great flashing and side

3 Sylvania 25L6 25L6GT Vacuum Tubes Valves Tall Base Gray And Silver Bottles Lot Of Three Matched Pair 7C5 new in box Sylvania 6SH7These three Sylvania tall base 25L6GT tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 49 (missing centering pin keyway; marked for safe and easy insertion), 66 and 76 where minimum (65%) is 45. !! AGAIN, TUBE ONE'S CENTERING PIN IS MISSING!! WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE