Matched Pair RCA Black Plate 6K6 6K6GT Vacuum Tubes Black Plate

Matched Pair RCA Black Plate 6K6 6K6GT Vacuum Tubes Black PlateThis matched pair of RCA black plate 6K6GT tubes was tested on our Maxi Matcher tube tester with 325 volts on the plates and a bias of 36 volts. Tube One drew 19. 5 milliamps' plate current while Tube Two drew 19. 6. Transconductance was 1670 for Tube One and 1560 for Tube Two where new nominal is within one standard deviation of 1900. As I write, I am playing them in my Mini Mite 2013 (with adapters, not included) and they sound great. WE HAVE SCORES

It has dual O getters

INTRUSIVE AND DRACONONIAN GERMAN PACKAGING REGULATIONS -- AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH IT -- WE NO LONGER SHIP TO GERMAN ADDRESSES

As I write

new in box Raytheon 21LU8 tubes tested to spec on our Paul Hart-calibrated TV7/U

As a survivor of Communist East Germany

They tested (from left to right

This lot of three Raytheon 12AX4GT / 12AX4GTA / 12AX4GTB tubes tested to spec on our Paul Hart-calibrated TV7/U

THE PRODUCT DEVELOPMENT AND IMPROVEMENT CYCLE IS OVER

Tung-Sol-MANUFACTURED) measured 30 while Tube Two measured 31 where minimum (65%) is 22 and 100% is 34

medium bottles

This tube has a top-D getter

This Philco 5Y4G rectifier tube tested 54/49 where minimum (65%) is 40/40 and 100% is 62/62