Matsushita Gold Pin 12AU6 Vacuum Tube Valve NOS NIB Vinyl 826-773-1 I am playing them as

I am playing them as I write in my Alan Eaton AC-heated single-ended 45 amplifier with Pink Floyd’s "The Wall" as 6SN7 substitutes and they sound terrific

Transconductance measured 72 for Tube One and 76 for Tube Two where minimum (65%) is 58

new in box CBS 12DB5 tube tested to spec on our Paul Hart-calibrated TV7/U

This paperback book is in very-good condition

new in box Sylvania Number 37 tube tested to spec on our Paul Hart-calibrated TV7/U

Matsushita Gold Pin 12AU6 Vacuum Tube Valve NOS NIB Vinyl 826-773-1 I am playing them asThis Matsushita MANUFACTURED, Realistic Radio Shack BRANDED 12AU6 tube 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