Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes 59 Fiftynine 7 for Tube Two

7 for Tube Two

The Superior-tested tube measured "low to medium-good

This paperback book is in good condition

This new old stock-testing milspec

They sound great in my Alan Eaton single-ended 45 amplifier (with an adapter

Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes 59 Fiftynine 7 for Tube TwoThis 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 50 for Tube One and 54 for Tube Two where minimum (65%) is 40. They have 2 30 188 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.