5 US-Made 12A8 12A8GT Vacuum Tubes Lot Of Five 3Q5 Octal T67 it has a top D

it has a top D getter: a micanol base for resistance to heat

new in box Amperex 6CB6A / 6CF6 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box Westinghouse 6X4 tested to spec on our Paul Hart-calibrated TV7/U

am showing both sides of the watch to make identification as easy as possible

Tube One measured 41 while Tube Two measured 42 where minimum (65%) is 27

5 US-Made 12A8 12A8GT Vacuum Tubes Lot Of Five 3Q5 Octal T67 it has a top DThese five US made 12A8GT tubes were tested for shorts, gas and transconductance on our Paul Hart calibrated TV7 U and measured as follows: 24, 37, 40, 44 and 46 where minimum (65%) is 29. 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