[rescue] WTB: Amiga 3000 or parts

[Ian Finder]

The 2Ks aren't as bad about capacitor leakage-- they use the standard,
through-hole components and not the aluminum can SMT ones known for
spilling electrolyte... So the caps do go bad, but it's not a time-bomb
eating the board like in the 4K / 1200.

That said, I've learned the battery leakage is always a concern in
'big-box' amigas, so if you haven't pulled that little NiCad RTC battery,
_do it now_ (and neutralize the mess it left with thorough Vinegar
> Distilled water > isopropanol treatment)

Cheers,

- Ian




On Fri, Mar 7, 2014 at 8:42 AM, Mauricio Tavares <raubvogel at gmail.com>wrote:

> On Fri, Mar 7, 2014 at 11:37 AM, Ian Finder <ian.finder at gmail.com> wrote:
> > Looking at completed listings, it seems like -stock- A3Ks have typically
> been
> > running closer to $300 USD on eBay, but yeah the exceptions sometimes
> happen
> > as they are quite old and reasonably uncommon.
> >
> > I know I could make my life a lot easier by finding a 1200 and upgrading
> it,
> > but I've already got a stash of upgrades and bits for the 3K. Also, for
> some
> > reason, computers that are built into keyboards really bother me :)
> >
> > So I'm doomed to pay some money to put the system back on it's feet, but
> that
> > is something I've resigned myself to.
> >
> > I actually picked up another 3K for parts recently pretty cheaply, but
> now I
> > just have two Amigas with bad logic boards.
> >
> > But I have a lead on a working machine that will hopefully pan out.
> >
> > Peter, you should get your 4K out and definitely make sure the caps
> aren't
> > leaking too bad. The audio circuit in them is particularly sensitive to
> damage
> > caused by the corrosive electrolyte sitting on the board.
> >
>       Now you make me want to find my A2000 and see how it looks like
> inside. What I always wanted were the tower ones...
>
> > Thanks,
> >
> > - Ian
> >
> >
> >
> > -----Original Message-----
> > From: "Peter Corlett" <abuse at cabal.org.uk>
> > Sent: b 3/b 7/b 2014 3:08
> > To: "The Rescue List" <rescue at sunhelp.org>
> > Subject: Re: [rescue] WTB: Amiga 3000 or parts
> >
> > On Mon, Feb 17, 2014 at 04:02:29PM -0800, Ian Finder wrote:
> >> I know this may be a long shot, but my Amiga 3000 has failed beyond my
> >> diagnostic abilities.
> >> I'd like to buy either:
> >>   1) Full A3000D or 4000D as a replacement
> >>   2) Amiga 3000 motherboard
> >
> > A3000s are *extremely* rare, and I just watched one go for over #500. I
> had
> > been vaguely watching this A4000 on eBay as I probably have enough spare
> > parts
> > to get it running, but the current price for a dead unit (plus the cost
> and
> > inconvenience of going to Coventry in person) now seems a bit much:
> >
> > http://www.ebay.co.uk/itm/261410906127
> >
> >> As far as I know, I should have major components like custom ICs, so
> even a
> >> failed A3K would be useful.
> >
> > I have an A4000/040 plus another unit that's been part-stripped -- the
> A3640
> > CPU board is still present if you're after one of those -- but it's been
> > rather
> > a while since I did anything with them and I have no idea if there's a
> > working
> > machine between them.
> >
> > You will probably find it much easier to obtain an A1200 with 68030
> and/or
> > SCSI
> > controller, as many more of those were sold than A3000s.
> > _______________________________________________
> > rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
> > _______________________________________________
> > rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
> _______________________________________________
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>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.finder at gmail.com