Matched Quad General Electric GE 6CL6 Vacuum Tubes Black Plate Musical Paradise 301 This lot of three Ken-Rad

This lot of three Ken-Rad 6D6 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

This matched pair of RCA 8FQ7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

excellent flashing and what appears to be a US Navy logo on the base

microphonics and transconductance

Matched Quad General Electric GE 6CL6 Vacuum Tubes Black Plate Musical Paradise 301 This lot of three Ken-RadThis matched quad of GE black plate 6CL6 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured (From left to right): 41, 42, 42 and 44 where minimum (65%) is 30. 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