Matched Trio Sylvania 7A7 Vacuum Tubes Valves Lot Of Three Hill Terry Gilkyson 55 and 51 where minimum

55 and 51 where minimum (65%) is 40

These tubes have mediocre-to-fair and nice flashing

They measured 102/83 for Tube One and 104/78 for Tube Two where minimum (65%) is 57/57 and 100% is 88/88

They have NU 188-5 and 3-09 188-5 date/provenance codes

Matched Trio Sylvania 7A7 Vacuum Tubes Valves Lot Of Three Hill Terry Gilkyson 55 and 51 where minimumThis new old stock testing, perfectly matched trio of Sylvania 7A7 tubes was tested on our Hickok 800 for shorts, gas and transconductance. There were no shorts or gas. All measured 1950 micromhos where new nominal is 2000 and minimum (65%) is 1300. 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