[Coco] It's a small win, but a win nonetheless

Dave Philipsen dave at davebiz.com
Sun Mar 12 15:57:36 EDT 2017



> On Mar 12, 2017, at 2:05 PM, RETRO Innovations <go4retro at go4retro.com> wrote:
> 
>> On 3/11/2017 11:46 PM, Dave Philipsen wrote:
>> I guess the reason I'm so interested in your project is that over the years I have used microprocessors to read and generate data-on-tape for various projects including Teddy Ruxpin, Chuck E. Cheese's, ShowBiz Pizza Place, SMPTE time code, and others. Interestingly I have never played around much with the CoCo cassette data though.
> And I hope my comments don't create an assumption I am upset at that fact.

Certainly not. I enjoy the conversation.


>  On the contrary, I am excited that someone else finds my exploration of interest.  Happy to send schematics and such if you're interested in looking or helping.  All my projects are CC (hardware) and GPL (software/firmware), so anyone can enjoy.
> 
> To add some additional color, the sine wave coming out of the Coco1 is a thing of beauty.  nice and rounded and smooth.
> I didn't pay a lot of attention to the Coco 2 waveform, but the Coco3 was jerky, sharp, and seemed unfiltered.  Cost reductions and integration evident.
> 
> Jim
> 
> 
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