[Coco] Video adapters

[jdaggett at gate.net]

Chester 

Chances are not. The output transistors of the COCO 3 are 
emmitter follower configuration and the emmitter resistor is set so 
that with a 75 Ohm load of a R GB monitor, the output voltage will 
be within 0.8 V olts and 2.0 Volts. Paralleling another 75 Ohm load 
onteh Coco3 will lower the output voltage and place greater strain 
on the output transistors due to the increase current. 


What is affected is the voltages of th RGB signals. It is the 
instantaineous voltage and pahse that gives  you saturation and hue 
respectively. Adding another load on the COCO3 will probably 
make the colors darker and shift the hue of the color. 

james



On 26 Apr 2006 at 9:22, Chester Patterson wrote:

> Would it be possible to have BOTH Roy's VGA AND Chris' S-vid adapters
> running simultaneously?
> 
> Have a lot of fun at the fest!
> 
> /Chester
> Costa Rica
> 
> 
> 
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