5 US-Made Number Type 78 #78 Vacuum Tubes Valves Mesh Plate Lot Of Five Edited By Publishers bayonet socket is in great

bayonet socket is in great shape and is very clean

It measured 58/56 where minimum (65%) is 40/40 and 100% is 62/62

new in box matched pair of Sylvania gray glass 7C5 tubse was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volt for shorts

It measured 78/80 where minimum (65%) is 50/50 and 100% is 77/77

new in box US-made 8BA11 tubes tested to spec on our Paul Hart-calibrated TV7/U

5 US-Made Number Type 78 #78 Vacuum Tubes Valves Mesh Plate Lot Of Five Edited By Publishers bayonet socket is in greatThese five US made, mesh plate number 78 tube were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 28, 28, 30, 35 and 43 where minimum is (65%) is 36 and 100% is 55 and 100% is 55. 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