Raytheon 12K7 12K7GT Vacuum Tube NOS NIB Matched Pair 6CG7 but still usable especially in

but still usable especially in experimental situations where the tube might be damaged -- on our Paul Hart-calibrated TV7/U

This GE 6EH4 tube tested to spec on our Paul Hart-calibrated TV7/U

These tubes have steel support rods and top

Transconductance measured 4100/3400 micromhos

Raytheon 12K7 12K7GT Vacuum Tube NOS NIB Matched Pair 6CG7 but still usable especially inThis lot of two new old stock, new in box US made 12K7GT tubes 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 COVERS