Matched Quad Philips What Miniwatt PCF80 9U8 Vacuum Tubes US-Made Octal where minimum (65%) is 48

where minimum (65%) is 48

It measured 54 for minimum (65%) is 38 and 100% is 58

These two Hytron 7C4 tubes tested to spec on our Paul Hart-calibrated TV7/U

One is simply labeled "XXFM

I am playing them as I write in my Alan Eaton single-ended triode amplifier with Talking Heads' "Fear Of Music" and they sound outstanding

Matched Quad Philips What Miniwatt PCF80 9U8 Vacuum Tubes US-Made Octal where minimum (65%) is 48This 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 101 82, 101 83, 102 83 and 102 86, 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