[Coco] CoCo2 black and gray video only -- need help!

[Keith Monahan]

Placed an order today with Amazon/Jameco had stock. Supposed to get here 
Monday. $6 shipped.

My preference is always digikey mouser newark etc for this stuff but can't 
hurt. And I'm impatient.

I can always measure what they give me, so it'll be pretty clear whether it 
is suitable or not.

Will the load capacitance or ESR spec differences matter when ordering?

While probably not right for this application, I've always wanted to toy 
with those programmable clock generators that are PLL-based. I use PLLs for 
clocks in my FPGA designs but never played with those yet. I wonder if they 
have the necessary accuracy.

Thanks
Keith

On October 23, 2021 10:30:48 AM Dave Philipsen <dave at davebiz.com> wrote:

> Well, there are a variety of things that can affect crystal accuracy
> including how strongly the crystal has been driven to oscillate in
> circuit. But given the fact that I have at least 5 CoCos with original
> crystals and they all still are in range to display NTSC color, then we
> have hope that we'll find a crystal that will work.
>
>
> Dave
>
>
> On 10/23/2021 12:08 AM, Gene Heskett wrote:
>>
>> So also will be the "new" one, as its probably been on the shelf
>> gathering dust for 30 years. The drift degradation is elapsed time, very
>> little to do with operating hours in that time. tc1 at minimum or
>> removed might put it back in range.
>
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