7 Ken-Rad 12K8 Vacuum Tubes Valves NOS NIB Lot Of Seven 5V6GT Octal This tube has a bottom

This tube has a bottom D getter and an E9M date code which means it was likely made by Sylvania

Transconductance measured micromhos with a plate current draw of milliamps

and if it is

Both have BW date codes

new in box Telefunken DL92 tube tested to spec on our Paul Hart-calibrated TV7/U

7 Ken-Rad 12K8 Vacuum Tubes Valves NOS NIB Lot Of Seven 5V6GT Octal This tube has a bottomThese seven Ken Rad 12K8 tubes tested to spec on our Paul Hart calibrated TV 7 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 COVERS ITEMS UP TO $250 IN VALUE. IF AN