3 RCA Number / Type 78 #78 Vacuum Tubes Valves Shoulder ST-Shape Lot Of Three Max Steiner

3 RCA Number / Type 78 #78 Vacuum Tubes Valves Shoulder ST-Shape Lot Of Three Max SteinerThese three RCA plate number 78 tubes 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: 32, 44 and 52 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 CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST OF THE TUBES WE

perfectly-matched pair of Ken-Rad 6SJ7s was tested on our Paul Hart-calibrated TV7/U for shorts

Tube One measured 60 while Tube Two measured 62 where minimum (65%) is 55 and 100% 85

new in box DuMont 6LU8 tube tested to spec on our Paul Hart-calibrated TV7/U

They have NU 188-5 and 3-09 188-5 date/provenance codes

new in box Sylvania 14F7 tube tested to spec on our Paul Hart-calibrated TV7/U

This lot of two National Union number 78 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

Both are acid-etched

These four RCA and Cunningham number / type 27 tubes tested as low goodand good on our Paul Hart-calibrated TV7/U

I have listened to all four LPs

These tubes were made in the Soviet Union and sent to East Germany where

Both tubes have gray

They measured 52