Matched Pair RCA 6AK5 Vacuum Tubes Steel Plates 116Oct28-31

Matched Pair RCA 6AK5 Vacuum Tubes Steel Plates 116Oct28-31This 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. Tube One measured 28 while Tube Two measured 29 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

56 and 57 where minimum (65%) is 40

5 record cleaner and then played it on my Rega Planar Threes

(New US-made 6V6s typically test with plate current from the mid-teens to mid-30s with transconductance from 2300 micromhos or so

new in box RCA 6AV5 tubes tested to spec on our Paul Hart-calibrated TV7/U

It has a top

new in box GE 7025 (12AX7 ECC83) dual triode for your Univalve or other application requiring a single 12AX7-type tube

These four US-made 12SC7 tubes tested as follows on our Paul Hart-calibrated TV7/U:

dark gray rounded plates and outstanding flashing

Transconductance measured 44/45 for Tube One and 45/45 for Tube Two where minimum (65%) is 25/25 and 100% is 38

There are four new old stock

new in box 7F8 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box National Union 7Y4 tubes in this lot