Stark Model 9-11 “dynamic” Tube Tester

AngrySailor

Subscriber
Came across this recently. It’s been stashed away at my fathers place since Great Grandpa passed in the 80’s. Even have some tubes kicking around as he was into tv and radio repair. It’s a 25hz model as that was the grid frequency in the area into the late 50’s I believe. Anyways just thought it looked interesting, if anyone has any information I’d like to hear more about it!

Here’s some pics.
 

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