International Servicemaster 6HG8 ECF86 Vacuum Tube NOS NIB Transleteronic 72/76 and 92/90 where minimum

72/76 and 92/90 where minimum (65%) is 50/50 and 100% is 77/77

new in box milspec RCA 12SG7 JAN-CRC-12SG7 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box Amperex-MANUFACTURED

Where the labeling took place is anyone's guess as the Raytheon-branded tube is stamped "England" while the Ameco tube claims to have been made in the USA

International Servicemaster 6HG8 ECF86 Vacuum Tube NOS NIB Transleteronic 72/76 and 92/90 where minimumThis new old stock, new in box Japanese International Servicemaster 6HG8 ECF86 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