Matched Pair General Electric GE 6005 6AQ5 Black Plate Vacuum Tubes 6SL7GT 2835 3730 D getter and a 4-09

D getter and a 4-09 188-5 date / provenance code

Tube One Transconductance: 45/45

Tube Five: 29

It is MM wide from the extreme left to the tip of the winding stem on the right

This new old stock-testing matched pair of Philips Miniwatt PCF80 / 9U8 tubes was tested on our Paul Hart-calibrated TV7 for shorts

Matched Pair General Electric GE 6005 6AQ5 Black Plate Vacuum Tubes 6SL7GT 2835 3730 D getter and a 4-09This 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 66 while Tube Two measured 68 where minimum (65%) is 46 and 100% is 71. These tubes have stout, shiny, ribbed black plates and stout O getters as well. It took two adapters but was worth it as they sounded fine in my Mini 2013. WE HAVE SCORES OF THOUSANDS OF VACUUM