[time-nuts] Electrolytic Capacitor Question
tmiller11147 at verizon.net
Sun Nov 9 23:21:22 EST 2014
----- Original Message -----
From: "Perry Sandeen via time-nuts" <time-nuts at febo.com>
To: "time-nuts" <time-nuts at febo.com>
Sent: Saturday, November 08, 2014 6:32 PM
Subject: [time-nuts] Electrolytic Capacitor Question
> OK everybody, let’s not get our pacemakers wound up<G>
> The problem. (Long Intro)
> I have about 15 pieces or so of older HP test equipment.
> 3586B, 5370B, 5335A to name a few. Because of their age of 20+ years a
> few have failed and need repair. I
> have decided to go on a wholesale electrolytic capacitor replacement on
> all of
> them. (Mouser will be able to declare an extra dividend)
> For all the *standard* types I’ve chosen mostly Panasonic
> 105C 10,000 hour caps. So far, so good.
> Now I come to the issue of the wet-slug tantalums that were
> used. At the time of manufacture, these
> were the best and most expensive low voltage electrolytics available.
> The question is: can one replace the tantalums with the high
> grade (105C) Panasonic or Nichicon capacitors with an equal or higher
> capacitance value?
> Even using the *tear drop* new replacements one is looking
> at very heavy $$$.
Take a look at the Aluminum Organic Polymer Electrolytics.
Available in 105 °C and 125 °C. They have very low ESRs. In the milliohms.
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