Matched Pair Philips Miniwatt PCF80 9U8 Vacuum Tubes Valves 12 Volt Listed chamfered O getters and rectangular

chamfered O getters and rectangular radiators for cooler operation and longer tube life

Tube Three measured 76/76 where minimum (65%) is 50/50 and 100% is 77/77

These two National Union clear bottle type / number 41 tubes tested as follows on our Paul Hart-calibrated TV7/U:

Transconductance measured 67 in Section One and 70 in Section Two for Tube One and 71/72 in Tube Two where minimum (65%) is 50/50 and 100% is 77/77

Matched Pair Philips Miniwatt PCF80 9U8 Vacuum Tubes Valves 12 Volt Listed chamfered O getters and rectangularThis 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 66 for Tube One and 85 70 for Tube Two where minimum (65%) is 57 57 and 100% is 88 88. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHELEC" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT