2 RCA 2B7 Cunningham Radiotron Vacuum Tubes Valves Lot Of Two February 03 2021 46 and 50 where minimum

46 and 50 where minimum (65%) is 30 and 100% is 47

These tubes have great bass and sparkling highs and Pete Ham's voice is warm and clear as a bell

They tested 54

The dust jacket is in nice condition

This matched pair of Sylvania-MANUFACTURED

2 RCA 2B7 Cunningham Radiotron Vacuum Tubes Valves Lot Of Two February 03 2021 46 and 50 where minimumThis lot of two RCA Cunningham Radiotron 2B7 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas, emissions and transconductance. There were no shorts or gas and they tested as follows: Tube one measured 30 in its triode section where minimum (65%) is 25 and 100% is 38. Its diodes measured 57 and 54, respectively, where minimum (65%) is 40 40 and 100% is 61 61. Tube Two (triode): 32 Tube Two (diodes): 60 42 WE HAVE SCORES OF THOUSANDS