4 RCA 6AC7 Vacuum Tubes Valves Lot Of Four Novar Plate Cap This new old stock-testing matched

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

Transconductance was 1900 for Tube One and 1800 for Tube Two where new/nominal is within one standard deviation of 1900

CUSTOMS DELAYS CAN ADD WEEKS TO DELIVERIES

new in box Sylvania 7W7 tubes tested to spec on our Paul Hart-calibrated TV7/U

This pressing has very-light surface noise audible only in quiet passages

4 RCA 6AC7 Vacuum Tubes Valves Lot Of Four Novar Plate Cap This new old stock-testing matchedThis lot of four RCA 6AC7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 41, 44, 44 and 46 where minimum (65%) is 30 and 100% is 47. 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 OR HAVE ANY QUESTIONS.