[Coco] COCO Video

[Mike Pepe]

John- what other methodologies were used to prototype ICs at Mot during that
time, if there was no traditional breadboarding being used?

> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-
> bounces at maltedmedia.com] On Behalf Of john dumas
> Sent: Monday, June 24, 2013 3:56 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] COCO Video
> 
> On 6/24/2013 12:52 AM, Mike Pepe wrote:
> > John, you've probably been asked this before, but what do you think of
> > the theory that the 6847 and 6883 were designed specifically for
> > Tandy? The 6883 in particular smells like a breadboard of TTL glue
> > that got the old shrinkeroo into a 40 pin DIP.
> The SAM (6883) *may* have been designed specifically for tandy.
> But, my memory is that the VDG was not, but picked up by tandy after the
> VDG was in production.....
> 
> The SAM may have been breadboarded to replace the glue logic around the
> VDG and MPU. That might explain the persistent belief by some that there
> was a VDG breadboard. I am unaware of any real evidence that there was. If
> a VDG breadboard existed I was CHEATED!!!
> A breadboard would have been a big help at the circuit design/layout
> phase.....
> 
> 
> 
> cheer,
> johnd
> >
> >> -----Original Message-----
> >> From: coco-bounces at maltedmedia.com [mailto:coco-
> >> bounces at maltedmedia.com] On Behalf Of john dumas
> >> Sent: Thursday, June 20, 2013 2:33 PM
> >> To: CoCoList for Color Computer Enthusiasts
> >> Subject: Re: [Coco] COCO Video
> >>
> >> On 6/20/2013 3:02 PM, Mike Pepe wrote:
> >>> John, if anyone should have seen it in breadboard form, it should have
> >>> been you!
> >> Yeah, that's what I've always thought.
> >> Of course, there was a lot that never found it's way down to the
"grunts".
> >> And the VDG project, more than any other at the time, was a prime
> example
> >> of that. There surely was "stuff" going on in other groups - MOT was
very
> >> Bottoms-Up at that time - that never got well known in other
groups.......
> >>
> >> I don't think Boisy could have picked a more difficult task - history
> > wise, that
> >> is........
> >>
> >>
> >>
> >> Now his Atari design (Liber809) work...WOW, that looks really tough.
> >> And truly amazing.
> >>
> >> cheers,
> >> johnd
> >>
> >>
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> 
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