Matched Pair Sylvania 6V6 6V6GT Vacuum Tubes Silver And Gray NOS-Testing

Matched Pair Sylvania 6V6 6V6GT Vacuum Tubes Silver And Gray NOS-TestingThis matched pair of Sylvania silver and gray 6V6GT output tubes was tested on our Maxi Matcher 400 volts on the plates and a bias of 36 volts for shorts, gas and transconductance. There were no shorts or gas. Tube One drew 30. 6 milliamps with a transconductance of 3060 micromhos while Tube Two measured 31. 3 2640, (New US made 6V6s typically test with plate current from the mid teens to mid 30s with transconductance from 2300 micromhos or so.) These

Cantata La Rosa and Lo

This matched pair of JJ 6BQ5 / EL84 / 6P14 / 6P14P output tubes was tested on our Maxi-Matcher 2 -- with 325 volts on the plates and a bias of -14 volts -- for shorts

not included) with Aimee Mann's seminal "Magnolia" album and they sound terrific

Tube Two: 22

Tube One measured 67 while Tube Two measured 73 where minimum (65%) is 46 and 100% is 71

3 milliamps for Tube One and 25

These tubes have anode radiators for cooler operation and longer tube life

Tube One measured 1940 micromhos

new in box milspec Tung-Sol JTL-5702WB tubes tested to spec on our Paul Hart-calibrated TV7/U

They have engraved / hot-stamped bases

new in box Cunningham 14F7 tube tested to spec on our Paul Hart-calibrated TV7/U

black plates