RE: Sega Vector Development Tools Project

The Vic-20 ran at 10 Mhz if I recall correctly. I had a Kaypro PC-XT clone
with a Vic-20 in it, with a switch on the back to toggle between 4.77 and 10
Mhz...

--- John

> -----Original Message-----
> From: owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org] On Behalf Of Scott Caldwell
> Sent: Sunday, June 12, 2005 6:06 PM
> To: vectorlist@vectorlist.org
> Subject: Re: VECTOR: Sega Vector Development Tools Project
>
> Back in the very early IBM PC days, there were replacement
> processors known as VIC 20 and VIC 30. These were 8088 CPUs,
> but ran a little faster than the stock IBM/Intel CPU.
>
> Scott C.
>
> Jess Askey wrote:
>
> > Yes, the board is an official Sega/Gremlin PCB and is labeled 'VIC
> > Replacement Board'. So, now that I think about this, Im
> guessing this
> > isn't a security chip replacement PCB? Im guessing VIC is
> 'Video IC'?
> > However, I couldn't find anything on Google for 'Sega VIC'
> so I guess
> > I don't know what this board is. Anyone know what VIC is?
> >
> > Hans O wrote:
> >
> >> Hi Jess,
> >>
> >> I've been fiddling with Sega XY stuff for a few years now.
> Never knew
> >> such an animal existed. Did Sega themselves make it? I'd love to
> >> borrow it for a bit and see how useful it could be. Here's
> my thought
> >> process:
> >>
> >> Back it out and fab a prototype or two. Try them out on
> all the G80
> >> stuff. Vectors I can do (see attached), rasters I can't.
> Not really
> >> sure if it even applies to raster stuff. Would need to
> enlist someone
> >> if need be.
> >>
> >> Document it for posterity. Perhaps send the results over
> to ionpool
> >> or my neighbor Mark J. to add to his wonderful FAQ.
> >>
> >> If it proves useful, then perhaps a small run would be in order. I
> >> did a batch of Cinematronics Exorcisors which turned out
> OK. I'm not
> >> in the "parts for profit" business but a handful of pieces I'd do.
> >> Collectors who've helped me out might find it useful. I, for one,
> >> have piles of G80 boards that don't add up to a set.
> >>
> >> Besides the security chip, the other problem is a shortage of good
> >> card cages. Know anybody who has a few spares?
> >>
> >> Well, that's my thought process. FYI, I'm catching an 1 PM flight
> >> tomorrow for work so I'll be out of touch 'till next week.
> >>
> >> Hans O in Chicago
> >>
> >> Jess Askey wrote:
> >>
> >>> this is slightly off topic but I have had a Sega Security Chip
> >>> bypass PCB laying around here for years and I just found it again.
> >>> it has jumpers on it so that it should be able to function as a
> >>> security IC replacement for any SEGA game. Does anyone have any
> >>> interest in this for making generic replacements for the security
> >>> chip. I really don't follow the Sega stuff much so I
> don't know what
> >>> is out there right now. Anyway, if anyone does have an
> interest, let
> >>> me know your level of intention and I will happily send it out to
> >>> you for reversing.
> >>>
> >
> >
> >
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> >
>
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Received on Sun Jun 12 18:18:07 2005