Re: caps (was: 8250LP....)

From: silverdr_at_wfmh.org.pl
Date: Mon, 21 Aug 2017 16:12:52 +0200
Message-Id: <44B93EB4-D7F8-4CD6-9BC8-3CF2B01D6B0D@wfmh.org.pl>
> On 2017-08-21, at 13:51, Francesco Messineo <francesco.messineo@gmail.com> wrote:
> 
> sorry to jump into this discussion (I wish I owned either a 1001 or
> 8x50 myself...), but assuming the leaky capacitors are electrolytics,
> they can nowadays almost always be replaced with MLCC capacitors that
> are both tiny and last forever.
> Of course one should examine the actual circtuit to be sure, but if
> they're the usual (for the '80s electronics) supply bypass or DC block
> ones, the MLCC will work even better of the original.
> I wouldn't dare using an MLCC in place of electrolytic as a switcher
> output capacitor unless I really checked what I'm doing anyway.

Did they really use electrolytic caps for bypasses in the eighties? I haven't had much experience in the pre 1982 (pre-C64 that is :-) electronics but those I've seen since 1982 were using ceramics for bypasses. DC blocks - yes, I've seen those. As for replacing the aluminium electrolytic ones, I heard about tantalum ones being the best (?) replacement for the aluminium based polarised caps.

-- 
SD! - http://e4aws.silverdr.com/


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