Matched Quad Philips Miniwatt PCF80 9U8 Vacuum Tubes Special Edition Tube One measured 54 while

Tube One measured 54 while Tube Two also measured 54

Transconductance was 2810 micromhos for Tube One and 2900 for Tube Two

This Raytheon 6JM6A tube is new old stock

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

clear recording with sparking highs and nice bass

Matched Quad Philips Miniwatt PCF80 9U8 Vacuum Tubes Special Edition Tube One measured 54 whileThis 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