Matched Quad Philips Miniwatt PCF80 9U8 Vacuum Tubes

Matched Quad Philips Miniwatt PCF80 9U8 Vacuum TubesThis 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 85 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

new in box GE 12AX4 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box gold pin Realistic Lifetime 6BS3A tube tested to spec on our Paul Hart-calibrated TV7/U

new in box (for Tube One) matched pair of Sylvania 5879 tubes was tested on our Paul Hart-calibrated TV/U for shorts

This new old stock-testing matched pair of Philips Miniwatt PCF80 / 9U8 tubes was tested on our Paul Hart-calibrated TV7 for shorts

Minimum (65%) is 33 and 100% is 51/51

5 milliamps Plate current draw: 21 milliamps

Philco-LABELED 6K6GT tubes was tested on our Maxi-Matcher 400 volts on the plates and a bias of -36 volts for shorts

These three 12A8GT tubes were tested for shorts

I am playing it in my Musical Paradise as I write MP-301 and it sounds excellent

(New US-made 7C5s typically test with plate current from the mid teens to mid 30s with transconductance from 2300 micromhos or so

I have played it in my Schiit Vali 2 headphone amplifier and it sounds outstanding

and they measured as follows: