You might also want to replace any "black beauty" caps in the unit. If it's
old enough to have any of the wax/paper caps, replace them. Chances of a
cap failure are very high. I've also seen molded mica caps in gear of that
vintage fail.
K8AC
----- Original Message -----
From: "Bob Marston" <k1ta@contesting.com>
To: <amps@contesting.com>
Sent: Saturday, January 27, 2001 13:03 PM
Subject: [AMPS] Rejuvenating an old GDO
>
> Hi Gang
>
> I recently obtained a 60s vintage Measurements Mdl 52 Grid Dip Oscillator.
> It's built like a tank and in excellent condition. It operational range is
> from 2.5 to 420 Mhz. It produces a solid current current at it the top end
> of its range.
>
> There is one fly in the ointment albeit a small one. The oscillator is
> intermittent. It is readily apparent that the cause of the problem is the
> equipments age. As the oscillator uses tubes and point to point wiring so
> it looks like the problem should be cleared up with a few hours of work
> reheating solder joints and cleaning contacts.
>
> The question I want to pose to the list has to do with contact cleaner. I
> know there is a range of products out there. I'm wondering if there is
any
> difference in performance of $1.50 can of cleaner that you buy at Radio
> Shack versus the stuff sold to professionals like the multiple treatment
De
> Oxit ?
>
> 73s
>
> Bob
>
>
> --
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>
>
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