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From: David Kennedy on 21 Apr 2010 15:16
jonatan wrote:
> Thank for all the suggestions. I've tried to contact some of the firms,
> but either they can't locate the chip or it will be way to expensive
> (£100+). Guess I have to try finding a defect classic, Plus or SE.

Was it used in any of the other Apple machines?

--
David Kennedy

http://www.anindianinexile.com
From: David Kennedy on 21 Apr 2010 15:18
David Kennedy wrote:
> jonatan wrote:
>> Thank for all the suggestions. I've tried to contact some of the firms,
>> but either they can't locate the chip or it will be way to expensive
>> (£100+). Guess I have to try finding a defect classic, Plus or SE.
>
> Was it used in any of the other Apple machines?
>
To answer my own question

<http://support.apple.com/kb/TA29470?viewlocale=en_US>

No.

Are any of the later ones compatible?

--
David Kennedy

http://www.anindianinexile.com
From: Stephen on 21 Apr 2010 16:48
On 21 Apr, 20:18, David Kennedy
<davidkenn...(a)nospamherethankyou.invalid> wrote:
> David Kennedy wrote:
> > jonatan wrote:
> >> Thank for all the suggestions. I've tried to contact some of the firms,
> >> but either they can't locate the chip or it will be way to expensive
> >> (£100+). Guess I have to try finding a defect classic, Plus or SE.
>
> > Was it used in any of the other Apple machines?
>
> To answer my own question
>
> <http://support.apple.com/kb/TA29470?viewlocale=en_US>
>
> No.
>
> Are any of the later ones compatible?
>
> --
> David Kennedy
>
> http://www.anindianinexile.com

Try looking for:

ZILOG 53C80
or
LOGIC Devices Inc. L53C80
From: Richard Tobin on 21 Apr 2010 18:19
In article <1786026078293523348.410327postFJERN-joyd.dk(a)eu.news.astraweb.com>,
jonatan <postFJERN(a)joyd.dk> wrote:


>I'm trying to repair my an old Mac Classic and I think I have located
>the problem to be the SCSI controller chip - a NCR 53C80. Do anyone know
>a place/website that deals in obsolete chips? I have tried google, but
>without much luck.

I used to have some NCR SCSI cards that quite likely had that chip,
but I think they are long gone. NCR's SCSI products become "Symbios"
at some point, so you might look under that name.

-- Richard
From: Jaimie Vandenbergh on 21 Apr 2010 19:13
On 21 Apr 2010 22:19:04 GMT, richard(a)cogsci.ed.ac.uk (Richard Tobin)
wrote:

>In article <1786026078293523348.410327postFJERN-joyd.dk(a)eu.news.astraweb.com>,
>jonatan <postFJERN(a)joyd.dk> wrote:
>
>
>>I'm trying to repair my an old Mac Classic and I think I have located
>>the problem to be the SCSI controller chip - a NCR 53C80. Do anyone know
>>a place/website that deals in obsolete chips? I have tried google, but
>>without much luck.
>
>I used to have some NCR SCSI cards that quite likely had that chip,
>but I think they are long gone.

Mine too - I only a couple of months ago binned a box or so of ISA-era
cards. Bad timing.

Finding old SCSI cards on eBay isn't difficult.

Cheers - Jaimie
--
"I do not feel obliged to believe that the same God who has
endowed us with sense, reason and intellect has intended us
to forgo their use." - Galileo Galilei
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