Matched Quad Philips Miniwatt PCF80 9U8 Vacuum Tubes Special Edition There are no technical faults

There are no technical faults with this pressing and any faults come from the source -- 78 records in this case

Tube One measured 54 while Tube Two also measured 54

They are dead quiet when the CD player is muted and have excellent frequency response

Transconductance was 1890 for Tube One and 2000 for Tube Two where new/nominal is within one standard deviation of 1900

Matched Quad Philips Miniwatt PCF80 9U8 Vacuum Tubes Special Edition There are no technical faultsThis 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