4 Sylvania 12Q7 12Q7GT Vacuum Tubes NOS NIB Lot Of Four US-Made NOS 6AS8 This matched pair of new

This matched pair of new old stock-testing General Electric / GE 12SN7 12SN7GTA dual triodes was tested on our Jackson 648 Mutual Conductance tester for shorts

It sounds very good with an occasional pop and tick audible in the pianissimo passages

(New 6CG7s typically test from within a half standard deviation of 2600)

ITEMS ARE GUARANTEED AS-DESCRIBED ON SHIPMENT

Transconductance was 1890 for Tube One and 2000 for Tube Two where new/nominal is within one standard deviation of 1900

4 Sylvania 12Q7 12Q7GT Vacuum Tubes NOS NIB Lot Of Four US-Made NOS 6AS8 This matched pair of newThis lot of four Sylvania 12Q7GT tubes tested to spec on our Paul Hart calibrated TV7 U. They are the new, straight bottle bottle variety. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY