3 General Electric GE 1622 / 6L6 Industrial Vacuum Tubes Valves Lot Of Three 7676 7977 US-made number / type 89

US-made number / type 89 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

I have listened to it in my Bottlehead Crack headphone amplifier and it sounded great

new in box GE 10DE7 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box 7F8 tubes tested to spec on our Paul Hart-calibrated TV7/U

This new old stock-testing matched pair of Sylvania 6AU6A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

3 General Electric GE 1622 / 6L6 Industrial Vacuum Tubes Valves Lot Of Three 7676 7977 US-made number / type 89These GE 1622 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 28, 37 and44 where minimum (65%) is 25. These are ultra low noise, selected 6L6s. 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