Ken-Rad Number / Type 80 #80 Vacuum Tube Valve Rectifier Black Plate ST Shoulder Shape T04 Both tubes are the same

Both tubes are the same on the inside with top D getters

where minimum (65%) is 40/40

milspec Sylvania 3Q5GT / JAN-CHS-3Q5GT / VT-221 tubes tested to spec on our Paul Hart-calibrated TV7/U

There were no shorts or gas and it tested as follows:

new in box US-made 9AU7 tubes tested to spec on our Paul Hart-calibrated TV7/U

Ken-Rad Number / Type 80 #80 Vacuum Tube Valve Rectifier Black Plate ST Shoulder Shape T04 Both tubes are the sameThis Ken Rad number 80 rectifier tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. It measured 62 52 where minimum (65%) is 40 40. 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 MEDIA