Matched Pair Sylvania 6V6 6V6GT Gray And Silver Bottle Silver Top Vacuum Tubes NOS-Testing Cunningham 3834 This Sylvania-MANUFACTURED- Coronado-LABELED 71A tested

This Sylvania-MANUFACTURED- Coronado-LABELED 71A tested 46 on our Paul Hart-calibrated TV7/U where new/nominal is 42

Tube One measured 1770 micromhos

8 milliamps' plate current with a transconductance reading of 2240 micromhos

75-6 out of ten

They are slightly microphonic

Matched Pair Sylvania 6V6 6V6GT Gray And Silver Bottle Silver Top Vacuum Tubes NOS-Testing Cunningham 3834 This Sylvania-MANUFACTURED- Coronado-LABELED 71A testedThis new old stock testing matched pair of silver top 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 31. 8 milliamps and transconductance was 2710 micromhos for Tube One. Tube Two measured 32. 3 2680. (New US made 6V6s typically test with plate current from the mid teens to mid 30s with transconductance from 2300 micromhos or so.) They have tall