Best Sounding!!
Matched Pair JHS Sylvania Gray Plate 12at7 / 6201 Triple Plate. For the actual test results, See pictures!! Tube is tested on my Maxi preamp tester and testing for noise on my audiophiles and marshall jcm 2000. TESTED Strong!! Matched!!
Noise Free!! Maxi preamp tubes tester uses 200V for plate voltage. Thus, test results will be different from other tube tester. Average New 12at7 /6201 measures on maxi preamp tubes tester as follows: Gain : 40-50% (+/-).
Conductance : 1700+. Again, this tube is auditioned and screened for noise! I test every tube im selling for 3 to 4 hours in average for actual noise tests.
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