> -----Original Message----- > From: Maciej W. Rozycki [mailto:ma...@linux-mips.org] > Sent: 30 August 2017 09:21 > To: r...@jarratt.me.uk > Cc: 'General Discussion: On-Topic and Off-Topic Posts' > <cctalk@classiccmp.org>; 'Tapley, Mark' <mtap...@swri.edu> > Subject: RE: PSU Input Rectifier Question > > On Tue, 29 Aug 2017, Rob Jarratt wrote: > > > I would just like to make doubly sure, before cutting into the outer > > body of the caps, am I likely to hit any gotchas? Just how wet are > > they inside, do I need to take any precautions with the electrolyte? > > I suggest that you cut the sleeve only first (with a utility knife, scissors or > whatever tool you find most convenient or at hand), in which case you won't > get to the electrolyte (except for any preexisting leaks of course), which is only > inside the aluminium can underneath. > > The purpose of the sleeve is mainly electrical insulation -- so that you don't > have a battery of large live components mounted next to each other posing a > risk of a short circuit if their surfaces accidentally touch. > In the past some electrolytic caps were manufactured without a sleeve > (especially axials), however I haven't come across such one for years.
There is a big red sticker saying that the heatsink is live, so I guess this one is not insulated and may be straight to the electrolyte. I will drill and drain I think. Regards Rob > > > I found some LED holders/clips which do seem to fit the bill, although > > I am not sure I see how you get the old LED out, unless you have to > > break the thing. > > From experience these seem pretty much single use only and either of the > 2 parts of the holder gets damaged while disassembling. > OK, good to know that I haven't missed a trick. Thanks Rob
