NOS SHUNT potentiometer.
This is for most Hickok tube testers.
Two sections with 150 ohms each.
*** Note; This does not fit to TV-7/U which requires longer shaft size. Its knob is different from TV-7, A , B ,D models.***
If your SHUNT pot is intermittent, try rotating fully to left and right many times, up to a few hundred times. This will clean the contacting surface area inside and may solve the problem.
Another way is to soak it into a cup of solvent like paint thinner or gasoline, then rotate a few times. If nothing works, you may need to get a new SHUNT pot.
I have many TV-7 parts unit. If you need any TV-7 parts please email me.
I ship via airmail worldwide that takes 7-14 days to most part of the world from Korea.
Some remote regions may take somewhat longer.
***I have a long experience of repairing TV-7s here in Korea. I am known as a TV-7 expert in Korea.
Technical questions about TV-7 repair are welcomed.***