Yankee Tube Tester & Rejuvenator No. S-550

[Les Dickson]

I just acquired this tube tester at an auction. I’m guessing it’s circa 1930 or earlier since it’s only accepts 4 and 5 pin tubes. I submitted the information to radiomuseum.org and they confirmed that it was manufactured by Lundquist Tool and Manufacturing Co.; Worcester, MA. I haven’t been able to find any other information about it by searching the Internet. I thought CRVS members might be interested in seeing the photos.

Attachments:

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   USA_yankee_s550_controls.jpg
   

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   USA_yankee_s550_directions.jpg
   

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   USA_yankee_s550_wiring.jpg
   

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   USA_yankee_s550-container.jpg
   

[phil]

If you need to work on it you might need my “Yankee” screwdriver..
I’ve seen a few of these around, but I was lucky to find the largest one Ive ever seen in a thrift in really nice condition. Its so long it’s crazy..
I’ts also cordless so way ahead of it’s time; -) those Yankees knew how to do it. Too bad they couldn’t use our Robertson screws, because driving one of those flat Yankee screws with this ( useless) tool is an exercise in frustration ! 😉

http://www.woodworkingtalk.com/f11/yankee-spiral-ratchet-screwdrivers-23180/

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