C64 S-Video Output Circuit ( was: Re: C16/Plus4 )

From: Tod D. Ihde <*tihde_at_warmerbythelake.com*> Date: Mon, 31 Oct 2011 18:28:52 -0500 Message-ID: <4EAF2F34.4050805@warmerbythelake.com> · tihde_at_warmerbythelake.com

On 10/31/2011 6:02 AM, Gerrit Heitsch wrote:

> RGB needs more pins and if your output is 40 chars per line, S-Video is
> plenty good. Unless of course, you have a crappy modulator in the signal
> path that does horrible things to your signal.
>
>  From a C64 forum I got a small circuit (2 transistors plus a few
> passive components) that one can use instead of the modulator. You get
> S-Video only at the output then (no CVBS anymore), but the picture is
> really good. I haven't tried it on a C16 yet, but I see no reason why it
> shouldn't work there too.
>
> Gerrit

Gerrit, I'm sure I'm missing something here, but my C64 has separate 
chroma / luma out - am I remembering correctly that older models only 
had composite, while newer models (such as mine) had both? Is that the 
reason for this circuit on the 64?

Thanks!

   Tod.

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