Re: Arcade board

[ralfe.cookson@trw.com (Ralfe Cookson)]

My newsreader does not have the first messages of this thread, so I am
not sure what board you are talking about. But because the subject is
"Arcade Board" and there was a board with TMS9918A and AY3-8910 on it
marketed as the "Arcade Board" by Third Millennium Engineering around
1983 - 1984, I am wondering if this might be it. If so it has some
programmable filters (low pass, high pass, band pass) on the PSG
outputs.  It only has mono outputs and the Apple interface bus timing
for the AY3-8910 was a little flakey.

mjmahon@aol.com (Michael J. Mahon) wrote in message news:<20040814033629.04913.00001694@mb-m05.aol.com>...
> Steven N. Hirsch wrote:
> 
> >Michael J. Mahon wrote:
> >
> >> I had my eye on it for almost a week.  An interesting combo
> >> of 9918 sprite card and AY-3-8910 sound chip.
> >> 
> >> Also interesting that they didn't find a way to route the video
> >> output on the PC board.  ;-)
> >
> >I missed the run-up to this.  A friend of mine who I have not seen in 
> >years designed a board called the "Sprite-n-Stereo" card. Is that what 
> >you have?  If so, quite a rarity.
> 
> It's pretty close!  There is one AY-3-8910, so it's a "Sprite-n-Mono"
> card.  ;-)  I note from the picture, though, that there's some 2-channel
> funny business at the audio end, so maybe it _is_ stereo...that would
> mean that the video is available only at the RF modulator connector.
> 
> I've never seen this combo before, and am looking forward to seeing
> how the 9918A and the '8910 are interfaced, since there's nothing
> but "glue" logic on the card.
> 
> -michael
> 
> Check out parallel computing for 8-bit Apples on my
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