Digital Vacuum Tube Tester, Duovac 1
This tester is ready to use and can work with most audio tubes,
from small triodes: 12at7, 12au7, 12ax7,6sl7,6sn7 to power triodes / pentodes like: 2a3, 300b, el84, 6v6, 6l6, el84, el34, kt66, kt88, etc...
Transconductance ( Gm ), Internal resistance ( Rp ) and Gain ( µ ) can easily be calculated using 2 simple measurements.
Rectifiers and diodes can also be tested.
Please download the documentation of the tester if you need: