[Heathkit] Replacement electrolytic caps for SB 221

[Jim Shorney]

I exclusively use 105C caps for any electrolytic replacement, period. Even low-voltage stuff. They are more robust and last longer. 

I'm experimenting with Nichicon snap-in PC mount HV caps designed for switch mode power supplies for an NCL-2000 rebuild. With a little mounting creativity they can be made to work well. K9SQG wrote an article about using them in Drake amps.

http://www.wb4hfn.com/DRAKE/DrakeArticles/TechTips/ElectrolyticRelacements.htm

73

-Jim
NU0C

On Tue, 2 Dec 2014 21:09:57 +0000 (UTC), Rick Poole WA1RKT wrote:


>From: "Paul Kraemer" <elespe at lisco.com>
>Sent: Tuesday, December 2, 2014 3:32:23 PM
>>>
>>> Mouser and Digi Key

>But, you have to be careful which ones you get.  I'm not intimately familiar with all of the requirements but some of the people who make and sell replacement power supply boards for amateur amps make a big deal out of using only high-temp-rated caps (105 degC?).

>Rick WA1RKT
>Londonderry, NH
>Catch me on 14.300 MHz Intercon / MMSN most days
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