Matched Pair Hytron 6V6 6V6GT Vacuum Tubes Black Glass NOS-Testing For Pleasure new in box GE 17DQ6

new in box GE 17DQ6 / 17DQ6B / 17GW6 tubes tested to spec on our on our Paul Hart-calibrated TV7/U

This hardcover book is in good condition

There is a hairline crack in the base of Tube Two

Tube One measured 1900 micromhos

Matched Pair Hytron 6V6 6V6GT Vacuum Tubes Black Glass NOS-Testing For Pleasure new in box GE 17DQ6This new old stock testing matched pair of Hytron black glass 6V6GT output tubes was tested on our Maxi Matcher 2 with 400 volts on the plates and a bias of 36 volts for shorts, gas and transconductance. There were no shorts or gas and they tested as follows: Tube One: Tube Two: Plate current draw: 26. 3 milliamps Plate current draw: 28. 4 milliamps Transconductance: 2540 micromhos Transconductance: 2390 micromhos (New US made 6V6s typically test with