International Servicemaster 6CG8 6CG8A Vacuum Tube Valve NOS NIB 3 Lot Of Three each with three rectangular holes

each with three rectangular holes

new in box Zenith 14B8 tube tested to spec on our Paul Hart-calibrated TV7/U

though this headphone amp is not optimized for this tube type

but most should work in most circuits

I am listening as I write and this album sounds pretty good

International Servicemaster 6CG8 6CG8A Vacuum Tube Valve NOS NIB 3 Lot Of Three each with three rectangular holesThis new old stock, new in box International Servicemaster 6CG8A 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