[Coco] help needed

[Zippster]

Josh,

Do you mean component drivers?  That driver circuit floating around won’t
work with regular component inputs as it sits (at least the tv’s I’ve tried).

If you mean composite, I have a variant of the circuit found in the MC6847 data sheet
drawn up in eagle.  It’s up as a shared project on OSH Park.  I can give the Eagle files
to anyone who wants to layout a board as they wish.

I recently bought a CoCo2 with the factory composite board.  I plan on pulling it out
and reverse engineering it after I get done with the SDC’s.  As it has pretty good
output.  It seems to be 1372 based, but has quite a few components compared to
the MC6847 data sheet circuit at first glance.

- Ed


> On Nov 4, 2014, at 6:49 PM, Josh Harper via Coco <coco at maltedmedia.com> wrote:
> 
> hi guys
> 
> was wondering if I paid for parts if someone whould be willing to do 2 things for me
> 
> 1 build me the rgb2vga converter
> 2 make draings of  2 composite video drivers I have so I can have  pcb made
> 
> thanks guys
> 
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