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 Post subject: Hickok model 230 tube tester
PostPosted: Sep Tue 21, 2021 2:16 pm 
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Joined: Sep Mon 14, 2020 2:07 pm
Posts: 3
I am looking for the schematic diagram for the HICKOK MODEL 230 tube tester. Any other documentation, e.g. updated tube chart, calibration procedure. It will be much appreciated if someone could point me in the right direction. Thanks much.


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 Post subject: Re: Hickok model 230 tube tester
PostPosted: Sep Tue 21, 2021 3:10 pm 
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Joined: Nov Wed 30, 2016 7:35 pm
Posts: 11278
Location: Sunbury, Ohio 43074
Interesting little Hickok. It looks for all the world like they used the same exact case as Sadelco was using for their field strength meters.

I can't find anything on a manual however. It's not a "great" tester, being only emission, but it is cute. Does it work ?

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