Matched Pair Sylvania 6V6 6V6GT Gray And Silver Bottle Silver Top Vacuum Tubes NOS-Testing Meski Filharmonii This pair of new old

This pair of new old stock

This new old stock-testing matched pair of RCA black plate triple mica 6CL6 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

US-made number / type 89 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

5 record cleaner and then played it on my He-Man Rig which consists of a Rega Planar Three with an Ortofon X5-MC cartridge on an RB-300 tone arm with a Valee PA-12B phono preamp / preamp feeding two ArtSound 805 monoblocks

5 or nine out of ten

Matched Pair Sylvania 6V6 6V6GT Gray And Silver Bottle Silver Top Vacuum Tubes NOS-Testing Meski Filharmonii This pair of new oldThis new old stock testing matched pair of Sylvania 6V6GT output tubes was tested on our Maxi Matcher 2 for shorts, gas and transconductance. There were no shorts or gas. Plate current measured 27. 6 milliamps and transconductance was 2740 micromhos for Tube One. Tube Two measured 27. 9 2740. (New US made 6V6s typically test with plate current from the mid teens to mid 30s with transconductance from 2300 micromhos or so.) As I write, I am playing them