Matched Pair RCA Radiotron Number / Type 89 #89 Vacuum Tubes NOS-Testing 6B8 Grid Cap well recorded

well recorded

Please rely on the pictures as to the true content of these albums as my Russian is worse than poor

Tube Three (triode): 51

44/50 and 52/50 where minimum (65%) is 40/40 and 100% is 62/62

Matched Pair RCA Radiotron Number / Type 89 #89 Vacuum Tubes NOS-Testing 6B8 Grid Cap well recordedThis matched pair of RCA Radiotron number 89 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They tested as follows: 56 and 58 where minimum (65%) is 395 and 100% is 60. These are great looking, well constructed tubes with Micanol bases; anode radiators for cooler operation and longer tube life and gray and silver bottles. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT