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

each with three rectangular holes

This hardcover book -- and its dust jacket -- is in very good condition

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

The Marconi is Canadian and the rest are American

Admiral-BRANDED 5V4G rectifier tube was tested on our Paul Hart-calibrated TV7/U

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