[sdiy] roland rs202 vibrato speed mod + stuck note

[Dave Magnuson]

----- Original Message ----- 
From: "Travis Thatcher" <recompas at gmail.com>
To: "Synth DIY" <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, March 16, 2010 6:59 PM
Subject: [sdiy] roland rs202 vibrato speed mod + stuck note

<snip>

> I'm also curious as to the possibility of adding a vibrato speed mod.
> I know there is a vibrato osc circuit, looking at the following
> schematics, but I'm afraid my circuit knowledge is limited enough and
> I'm not sure what would need to be variable to vary the osc. speed.
> Got the schematics from here:http://www.loscha.com/scans/
>
> Any help would be greatly appreciated.
>
> -Travis
>
> -- 
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Vibrato speed is nice and easy.   Look at the calibration instructions at 
the end:  Vibrato speed is VR9.     Remove the trimmer and replace it with a 
panel mounted pot.

Dave Magnuson