Matched Quad Philips Miniwatt PCF80 9U8 Vacuum Tubes 6CG7 With Shields I just cleaned this signed

I just cleaned this signed copy on my VPI 16

6 milliamps with a transconductance of 3060 micromhos while Tube Two measured 31

was made in China

I just cleaned both LPs in this album on my VPI 16

it has a top D getter: a micanol base for resistance to heat

Matched Quad Philips Miniwatt PCF80 9U8 Vacuum Tubes 6CG7 With Shields I just cleaned this signedThis matched pair of Philips Miniwatt PCF80 9U8 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 86 82, 89 76, 89 77 and 90 75, respectively. Minimum (65%) is 57 57. 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