[sdiy] Hammond Vibrato Scanner

[Ingo Debus]

Am 02.01.2008 um 00:38 schrieb David Brown:

>
>> This is a fascinating project, and I can see why you're interested in
>> pursuing it, but I can't help thinking that the same effect could be
>> acheived much more easily with a good chorus unit. :-0
>

The scanner vibrato in my Parie organ sounds more like a phaser than  
like a chorus. Of course only when the scanner is spun much slower  
than intended. With the original speed it's -well- vibrato.
I haven't compared it side by side to a real phaser, but probably  
there's something special to scanner vibratos. In Apple Logic there's  
a scanner vibrato emulation plugin, in addition to phaser, flanger,  
chorus and whatnot plugins.


> I'm thinking more of not using the delay line but using the  
> capacitive scanner.  You could put 16 analog signals and mux  
> between them while spinning ...

One idea I had was adding a second "arm" to the rotor, on the  
opposite side of the original arm. This would give a stereo effect.  
But making an electric contact to that second arm would be tricky.

Ingo