2 Sylvania 6LY8 Vacuum Tubes Valves NOS NIB Lot Of Two 12HG7 NOS NIB It has double

It has double

US Army Signal Corps SC278A contract codes and two additional support rods per tube for increased rigidity and lowered microphonics

I am playing it it in my Bottlehead Crack headphone amplifier as I write and it sounds great

GE-BRANDED 17EW8 / HCC85 tubes tested to spec on our Paul Hart-calibrated TV7

The remaining two are labeled "1X2B

2 Sylvania 6LY8 Vacuum Tubes Valves NOS NIB Lot Of Two 12HG7 NOS NIB It has doubleThese new old stock, new in box Sylvania 6LY8 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 TO