Re: Speeding up aTransWarp IIGS

[giorgio@ungarelli.net (Giorgio Ungarelli)]

Thanks to all for the replies.

I'm still waiting on Western Digital Design Center to get back to me
on the CPU (e-mail sent Friday night, so it might take a couple of
days more). In case of a minumum order requirement, I'll post again to
let you all know what it is to see who is still interested.

As for the oscillators, the Mouser Electronics web site shows that the
only "useful" frequency they have is 48MHz (thus yielding a 12MHz
TransWarp).  Both the 40MHz and the 50MHz oscillators are not in
stock.  Anybody know where else on the Internet it is possible
purchase these oscillators on-line?

Thanks,

Giorgio

"Anthony Beckett" <anthony@spam-sucks.unnamedpcmuseum.com> wrote in message news:<PySy8.61431$o66.186116@news-server.bigpond.net.au>...
> Me too.
> 
> --
> Regards,
> 
> Anthony Beckett
> www.unnamedpcmuseum.com
> www.thepcmuseum.com
> ------
> And now the news for Parrots. No Parrots were hurt in an accident on the M1
> today when a
> lorry collided with a bollard. That's a bollard, and not a Parrot. A
> spokesman for Parrots said
> he was glad no Parrots were involved.
> "Tim Haynes" <timhaynes@alumni.NO.SPAM.PLEASE.uwaterloo.ca> wrote in message
> news:g1Cy8.5305$7YU.2587@news01.bloor.is.net.cable.rogers.com...
> > I wouldn't mind getting in an min order myself.
> >
> > Cheers
> > Tim
> >
> > "Mike Tulloch" <mtulloch@no_spam.fit.edu> wrote in message
> > news:3CCB0804.3040806@no_spam.fit.edu...
> > > Yup, that's it! You're dead on. BTW if there's a min order for any of
> > > the components I'd be interested in snagging some myself.
> > >
> > > ~Mike
> > >
> > > Giorgio Ungarelli wrote:
> > > > Hi,
> > > >
> > > > I have a TransWarp IIGS with the 32K cache.  Its ROM is V1.8S and it
> > > > is running at the standard 7MHz speed (at least that is what one CPU
> > > > test program is giving me under ProDOS).  I have read that it is
> > > > possible to speed this card up even further.
> > > >
> > > > Am I right in assuming that the only two items I need to purchase and
> > > > replace on this TransWarp IIGS card are:
> > > >
> > > > ECS HALF SIZE CRYSTAL CLOCK OSCILLATOR dip-8 5v 64.0 mhz
> > > > ECS-2100A-64.0MHZ from http://www.mouser.com
> > > >
> > > > and
> > > >
> > > > W65C816S8PL-14 CPU from http://www.westerndesigncenter.com
> > > >
> > > > With the two changes above, I should end up with a 16MHz TransWarp
> > > > IIGS, right?
> > > >
> > > > If I purchase the 50MHz half size oscillator instead of the 64MHz
> > > > oscillator (just to be on the safe side), then the TransWarp card
> > > > should run at 12.5 MHz.
> > > >
> > > > If I am missing some information (or even if the above is correct),
> > > > could somebody please confirm?
> > > >
> > > >
> > > > Thanks,
> > > >
> > > > Giorgio
> > >
> > >
> > >
> >
> >