Matched Pair RCA Radiotron Number / Type 89 #89 Vacuum Tubes NOS-Testing 6B8 Grid Cap marked for safe and easy

marked for safe and easy insertion

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

new in box Raytheon 1032 / CK1032 is one of the strangest tubes I've ever seen and I have no idea how to test it

well recorded

This tube comes in a box typically seen for large corporate tube users wherein various

Matched Pair RCA Radiotron Number / Type 89 #89 Vacuum Tubes NOS-Testing 6B8 Grid Cap marked for safe and easyThis 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