[Coco] RGB --> VGA for CoCo: A success story

RJRTTY at aol.com RJRTTY at aol.com
Sat Jan 31 18:37:43 EST 2009


In a message dated 1/31/2009 11:39:08 A.M. Eastern Standard Time,  
snhirsch at gmail.com writes:



>A quick followup on the subject:  I built an RLC low-pass filter  based on 
>Roy's design (thanks for the schematic, Roy!) and gave it a  try.  Results 
>in my situation were not very good.  It did not  eliminate visible banding 
>(which was very slight to begin with), but did  throw away enough in-band 
>video signal to blur the text display  noticably.
 
 
Don't give up on the filter.... Try less capacitance since this is  the
easiest to change and will have the most effect.   By your  description
I would go from 470 pf to about 100 to 200 pf.
 
Roy
 
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