2 General Electric GE 6BK4 6BK4A 6BK4B 6BK4C 6EL4 6EL4A Vacuum Tubes NOS NIB Lot Of Two 12SA7 These four US-made 12SC7 tubes

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

I am playing them as I write in my Sound Craftsmen SC-2 mono-block amplifiers with Neil Young's "Harvest" and they sound outstanding

35 and 42 where minimum (65%) is 26 and 100% is 40

(New 6679s typically test within 1

2 General Electric GE 6BK4 6BK4A 6BK4B 6BK4C 6EL4 6EL4A Vacuum Tubes NOS NIB Lot Of Two 12SA7 These four US-made 12SC7 tubesThese three new old stock, new in box GE 6BK4 6EL4 tubes tested to spec on our Paul Hart calibrated TV7 U. 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 PURCHASE PROTECTION COVERS ITEMS UP