[Test-Equipment] Old Jackson tube tester

[Dave Mantor]

I just purchased an I-177 military Hickok.
It is in beautiful shape and doesn't look like it's been used much.
Dave w9ocm
On Jun 16, 2015 10:32 AM, "Brian Burns" <brian at lessonsinlutherie.com> wrote:

> Hello Miles,
>
> Thanks for the response!
>
> ~ The lack of electrolytic capacitors is no surprise.
>
> ~ You won't find them in a Hickok or a TV-* either, except to damp the
> panel
> meter.
>
> ~ The Hickok design is a bridge circuit that uses ac throughout.
>
> Well it sure was a surprise to me! I assumed that it had to have clean high
> voltage DC to do an accurate test. Thanks very much for setting me straight
> on this (:->)...
>
> So, I'm safe to bring it up to 110-115 volts line current, check for smoke,
> and put it into service?
>
> Cheers,
>
> Brian
>
>
>
>
>
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