Matched Pair Sylvania 6V6 6V6GT Gray And Silver Bottle Silver Top Vacuum Tubes NOS-Testing Kitty This new old stock-testing matched

This new old stock-testing matched pair of GE 12BH7A dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

almost-perfectly-matched pair of Sylvania-MANUFACTURED 6BL7GTA dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

rectangular mica spacers and anode radiators for cooler tube operation and longer life

This lot of five new old stock

new in box Zenith 6AF5G tube tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair Sylvania 6V6 6V6GT Gray And Silver Bottle Silver Top Vacuum Tubes NOS-Testing Kitty This new old stock-testing matchedThis 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 24. 5 milliamps and transconductance was 2480 micromhos for Tube One. Tube Two measured 25. 4 2660. (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