TIP on OLD STUFF-

[John A. Diefenbach]

I certainly agree. However, if you have access to a variable B+ voltage
source it's possible electrolytic capacitors can be 'reconditioned'.

Starting with a reasonably low voltage....say 15 to 25 volts; keep this
voltage applied for a while, maybe 1/2 hour to an hour and over a period of
24 hours, slowly bring the voltage up to the rated voltage and hold for
several hours. If the capacitor feels hot, or even warm during this
procedure, replace it.

I purchased a Seneca (non-eBay purchase) several years ago along with a Eico
Model 730 modulator. I replaced the Seneca's caps but not the Eico. I use
both weekly and the modulator has never given me a problem.
Of course, neither has the Seneca.

John Diefenbach
Mason, NH
----- Original Message -----
From: "The Internet Repair Shop" <theshopt at YAHOO.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Saturday, January 26, 2002 11:15 AM
Subject: TIP on OLD STUFF-


> Doing repairs for some 30 Years, just thought I'd share a Tip of the most
> common thing I've been finding restoring and repairing older Ham Gear.
> Most all the Electroytics have to be replaced simply because the leak or
> Dry Rot.
>
> I just re-Capped an HP-23 Supply, if you don't change out the Caps on your
> EBAY Goodies, and Auctions, the equipment will short and take out the
> Diodes and/or Power-Transformers...Something you don't want.
>
> Andy
> WB0OAF
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