Matched Pair Shuguang 6L6 6L6WGC Black Plate Vacuum Tubes NOS-Testing

Matched Pair Shuguang 6L6 6L6WGC Black Plate Vacuum Tubes NOS-TestingThis new old stock testing matched pair of Shuguang 6L6WGC output tubes was tested on our Maxi Matcher 2 for shorts, gas and transconductance with 400 volts on the plates and a bias of 48 volts. There were no shorts or gas. Tubes Ones plate current draw was 28. 3 milliamps while Tube Twos was 28. 4. Transconductance measured 2640 and 2760 micromhos, respectively. (New US made 6L6s typically test with plate current from the low 20s to mid 30s with

51/51 and 51/52 respectively

This new old stock-TESTING matched pair of Raytheon gray glass 6V6GT output tubes was tested on our Maxi-Matcher 2 at real operating voltages of 400 volts on the plates and a bias of -36 volts for shorts

new in box Zenith 25Z5 tubes tested to spec on our Paul Hart-calibrated TV7/U

Tube Seven: 30

This black plate Westinghouse 5Y3GT rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

74/37 and 76/54 where minimum (65%) is 50/40

her positive spirit prevailed and she has become -- for me at least -- a model for dealing with adversity

2/2160 where new 6F6s measure from approximately 2000 micromhos with plate current draw in the 20s

I am writing during the first few pianissimo minutes and the surface noise is distracting

well-recorded and well-pressed

O getter and excellent flashing

These CDs played fine in my Denon DCD-1650AR