International Servicemaster 6CG8 6CG8A Vacuum Tube Valve NOS NIB JAN0A3 Octal new in box Silvertone 6LJ8

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

Transconductance measured 85 for Tube One and 86 for Tube Two where minimum (65%) is 58

new in box National Union 6R7 / 6R7G tube tested to spec on our Paul Hart-calibrated TV7/U

Tube One measured 1940 micromhos

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

International Servicemaster 6CG8 6CG8A Vacuum Tube Valve NOS NIB JAN0A3 Octal new in box Silvertone 6LJ8This 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