International Servicemaster 6CG8 6CG8A Vacuum Tube Valve NOS NIB JAN0A3 Octal Transconductance measured 77 for both

Transconductance measured 77 for both tubes where minimum (65%) is 40

The board and lens comprise one unit

new in box (one total) / new old stock-testing (six total) RCA 6CD6G and 6CD6GA tubes tested as follows on our Paul Hart-calibrated TV7/U:

new in box Silvertone 6LJ8 tube tested to spec on our Paul Hart-calibrated TV7/U

International Servicemaster 6CG8 6CG8A Vacuum Tube Valve NOS NIB JAN0A3 Octal Transconductance measured 77 for bothThis 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