Matched Pair RCA 6AK5 Vacuum Tubes Steel Plates Secret Bankers It measured 55/51 where minimum

It measured 55/51 where minimum (65%) is 40/40 and 100% is 62/62

This new old stock-testing Sylvania engraved base type 48 tube was tested our Paul Hart-calibrated TV7/U for shorts

Tube Two: 35

new in box GE 12FX8A tubes tested to spec on our Paul Hart-calibrated TV7/U

anode radiators for cooler operation and longer life and have acid-etched GE dots

Matched Pair RCA 6AK5 Vacuum Tubes Steel Plates Secret Bankers It measured 55/51 where minimumThis perfectly matched pair of RCA steel plate 6AK5 tubes was tested on our Paul Hart calibrated TV7 U tester for shorts, gas and transconductance. There were no shorts or gas. Both tubes measured 25 where minimum (65%) is 22. These tubes have steel plates; top D getters and excellent flashing. I am playing them now in my Mini 2013 as I write and they sound excellent. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT.