Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes Nagrania XL 0257 48 and 51 where minimum

48 and 51 where minimum (65%) is 32 and 100% is 49

CHINA IS AN EXCELLENT EXAMPLE

Transconductance was 1530 for Tube One and 1430 for Tube Two where new/nominal is within one standard deviation of 1900

Tube One measured 60 while Tube Two measured 70 where minimum (65%) is 46 and 100% is 71

Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes Nagrania XL 0257 48 and 51 where minimumThis nearly perfectly matched pair of GE 6SJ7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 46 for Tube One and 48 for Tube Two where minimum (65%) is 40. They have 1 43 188 5 and 3 52 188 5 date provenance codes, respectively. I am playing them as I write in my Musical Paradise MP 301 MK3 and they sound excellent. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES.