Matched Pair General Electric GE 6V6 6V6GT Vacuum Tubes Black Glass

Matched Pair General Electric GE 6V6 6V6GT Vacuum Tubes Black GlassThis new old stock testing matched pir of GE 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 21. 3 milliamps with a transconductance of 2700 micromhos while Tube Two measured 22. 1 2520. (New US made 6V6s typically test with plate current from the mid teens to mid 30s with transconductance from 2300 micromhos or so.) These

They measured (from left to right) 46

It has the occasional pop and tick

These four US-made belll-plate number / type 77 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

You will always get the-best-testing tube(s)

6 milliamps' plate current

These matched quad of RCA milspec JRC-6H6 / 6H6 / VT-90 6H6 tubes was tested on our Paul Hart-calibrated TV7/U

These are World War Two-vintage tubes sourced from third parties to fulfill the second party's military contract

new in box GE 12EG6 tubes tested to spec on our Paul Hart-calibrated TV7/U

I am playing them in my Musical Paradise MP-3 single-ended integrated amplifier (with adapters

The tubes have balloon / globe bottles

perforated plates

Tube One measured 60/50 while Tube Two measured 61/51 where minimum (65%) is 50/50 and 100% is 77/77