[sdiy] PWM Outputs

[Tom Wiltshire]

If anyone wants to look, all the schematics are at:

	http://www.rhodeschroma.com/?id=schematicsdrawings

The relevant page is:

	http://www.rhodeschroma.com/content/servicemanual/schematicsdrawings/dualchannelboardschematic1.pdf

It's pretty weird looking, but you can see the PWM CV ("Width") getting mixed in on both oscillators (on the left). It's a fascinating design, what with the highly unusual dual-channel structure and the various ways things can be routed. There's loads more info on this extremely good site.

Personally, I love reading old synth schematics!

Enjoy,
Tom


On 8 Nov 2010, at 07:26, Oakley Sound wrote:

> > The Rhodes Chroma mixed the PWM CV into the PWM output to remove the DC offset.
> 
> Didn't know that. But I've been doing it for years with my VCO.
> 
> The biggest benefit for me is to not have a thump when you modulate PW with a fast CV like an EG.
> 
> Tony
> 
> www.oakleysound.com
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