Matched Pair RCA 6AG7 Vacuum Tubes NOS-Testing Philips Miniwatt 9U8 " but was made by

" but was made by Sylvania

new in box matched pair of GE 6SJ7s was tested on our Paul Hart-calibrated TV7 for shorts

5 standard deviation of 4000 micromhos

These links appear to be made of stainless steel and rose gold

Matched Pair RCA 6AG7 Vacuum Tubes NOS-Testing Philips Miniwatt 9U8 " but was made byThis new old stock testing, almost perfectly matched pair of RCA (Hewlett Packard By RCA) 6AG7 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 48 and 49 where minimum (65%) is 30 and 100% is 46. 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