SKU:53319088003
Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes NOS-Testing
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Ships within 48 hours · Estimated delivery Sep 29 - Oct 4
Description
Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes NOS-TestingThis new old stock testing, 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 62 for Tube One and 64 for Tube Two where minimum (65%) is 40. They have 4 48 188 5 and 5 43 188 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
a silkscreened base and outstanding flashing
Tube One measured 54 while Tube Two also measured 54
Wish I knew who actually made them
This lot of three Tung-Sol new old stock
milspec Sylvania JHS-12AT7WA (12AT7 / ECC81) dual triode was tested on our Paul Hart-calibrated TV7/U for shorts
new in box GE 12AQ5 tubes tested to spec on our Paul Hart-calibrated TV7/U
Tube One measured 78/73 while Tube Two measured 81/72 where minimum (65%) is 58
They are not 6SN7s
top O getter and excellent flashing
an additional mica spacer for low microphonics
This watch must be serviced
nice flashing and ribbed
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