Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes bumpus top O getters and large
$13.32
Description
top O getters and large anode radiators for cooler operation and extended tube life
new in box National Union 7Y4 tubes in this lot
excised chevrons in their top mica spacers as well as 210 5439 and 5413 provenance/date codes
Tube One: 54/68
They tested 54
Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes bumpus top O getters and largeThis nearly perfectly matched pair of GE 6SJ7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 46 for Tube One and 48 for Tube Two where minimum (65%) is 40. They have 1 43 188 5 and 3 52 188 5 date provenance codes, respectively. I am playing them as I write in my Musical Paradise MP 301 MK3 and they sound excellent. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES.
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