Matched Pair General Electric GE 6005 6AQ5 Black Plate Vacuum Tubes Black Plate Nonal These six 6GC5 tubes were

These six 6GC5 tubes were tested on our Paul Hart-calibrated TV-7/U

new in box Sylvania-MANUFACTURED 1LE3 tubes tested to spec on our Paul Hart-calibrated TV7/U

Tube Nine: 40/2460 and

This matched pair of RCA-MANUFACTURED gray glass 6K6GT tubes was tested on our Maxi-Matcher tube tester with 325 volts on the plates and a bias of -36 volts

excellent flashing and top O getters

Matched Pair General Electric GE 6005 6AQ5 Black Plate Vacuum Tubes Black Plate Nonal These six 6GC5 tubes wereThis matched pair of GE black plate 6005 6AQ5 output tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 59 while Tube Two measured 64 where minimum (65%) is 46 and 100% is 71. These tubes have stout, shiny, ribbed black plates and horseshoe getters. It took two adapters but was worth it as they sounded fine in my Mini 2013. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES.