Matched Pair General Electric GE 6V6 6V6GT Vacuum Tubes Black Glass Amperex 5915 NOS This is a rather-early tube

This is a rather-early tube

sutured tops and a large D getter angled at 45 degrees

new in box GE 12CX6 tubes tested to spec on our Paul Hart-calibrated TV7/U

This black plate GE-MANUFACTURED

Matched Pair General Electric GE 6V6 6V6GT Vacuum Tubes Black Glass Amperex 5915 NOS This is a rather-early tubeThis 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 20. 3 milliamps with a transconductance of 2320 micromhos while Tube Two measured 21. 3 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