[Coco] MC6847 + Component video

CoCo Demus retrocanada76 at gmail.com
Fri Apr 24 10:16:16 EDT 2015


I'd go for discrete.

On Fri, Apr 24, 2015 at 10:08 AM, Joe Grubbs <jsgrubbs at hotmail.com> wrote:

> Cool! We have three circuits to test. One of them is discrete and runs
> happily on 5v. The second uses commonly available opamps but needs an
> external supply or a dc to dc converter. The third uses a somewhat esoteric
> opamp from AD but it can run on 5v. It would be best to use commonly
> available parts though because AD is prone to discontinue products with
> little notice :-/
>
>
>
>
> --- Original Message ---
>
> From: "Zippster" <zippster278 at gmail.com>
> Sent: April 24, 2015 9:54 AM
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Subject: Re: [Coco] MC6847 + Component video
>
> Joe, I can design PCBs if that’s needed once the circuit is tested/tweaked.
> Two layouts should be able to cover any CoCo1/2.
>
> - Ed
>
>
> > On Apr 23, 2015, at 2:50 PM, Joe Grubbs <jsgrubbs at hotmail.com> wrote:
> >
> > And we have a circuit breadboarded :) Won't be able to test drive it
> until I get back from Chicago. If it works, and more importantly performs
> well, how much interest is there? I know that neither him or I have the
> time to build anything beyond very small numbers, so if there is a high
> demand, it would be best to hand the design off to someone that is better
> equipped.
> >
>
>
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