Re: VIC-42

From: Bill Degnan <billdegnan_at_gmail.com>
Date: Mon, 21 Jun 2021 21:38:15 -0400
Message-ID: <CABGJBufraDPb0P_hc5=LnxNYN+TS9sTiWAobOLZdXJS_mUBAMQ_at_mail.gmail.com>
OT: Not to be confused with this Alphacom
https://www.vintagecomputer.net/browse_thread.cfm?id=502
BD

On Mon, Jun 21, 2021 at 9:08 PM Mike Naberezny <mike_at_naberezny.com> wrote:

> On 6/20/21 8:43 AM, Six Of DLoC wrote:
> > Anyone have an Alphacom 42 they want to pop open and see if one of these
> is on
> > the board?
>
> I have an Alphacom VP42 printer and to my surprise, it does indeed contain
> a
> "VIC-42" chip:
>
> http://mikenaberezny.com/hardware/c64-128/alphacom-vp42-printer/
>
> My first thought upon seeing this was that it could be a MOS 6500/1 like
> in
> the Commodore 1520 plotter.  I did some quick continuity checks and that
> seems
> probable.  Vcc, Vss, and the crystal match the pins on the 6500/1
> datasheet.
>
> As David Wood noted, there are different versions of this Alphacom
> printer.
> This one is badged "VP42".  There is another one on eBay USA right now
> (item
> 154500859889) that is badged only "42".  It is externally very similar but
> the
> board is different and has an 8041 instead.
>
> Regards,
> Mike
>
> --
> Mike Naberezny (mike_at_naberezny.com) http://6502.org
>
>
>
Received on 2021-06-22 05:01:10

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