International Servicemaster 6CG8 6CG8A Vacuum Tube Valve NOS NIB 3 Lot Of Three but most should work in

but most should work in most circuits

though this headphone amp is not optimized for this tube type

This matched pair of RCA Cunningham Radiotron Type 49 output tubes was tested on our Paul Hart-calibrated TV7/U for shorts

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

each with three rectangular holes

International Servicemaster 6CG8 6CG8A Vacuum Tube Valve NOS NIB 3 Lot Of Three but most should work inThis 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