7 Matched Sylvania 7A7 Vacuum Tubes Valves NOS-Testing Lot Of Seven 2 Lot Of Two firmly-cemented to their bases

firmly-cemented to their bases

noise or gas and it tested as follows:

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(New 6211s typically test within one to 1

7 Matched Sylvania 7A7 Vacuum Tubes Valves NOS-Testing Lot Of Seven 2 Lot Of Two firmly-cemented to their basesThis perfectly matched septet of new old stock testing Sylvania 7A7 tubes was tested on our Hickok 800 for shorts, gas and transconductance. There were no shorts or gas and they all measured 2200 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