[sdiy] Re: Moog Parametric?

Jason Proctor jason at redfish.net
Tue Dec 4 02:27:45 CET 2007


well actually my question, which i should have phrased better, was 
"why does it have to be a dual pot?"

additionally my naive mind thought that there might be more audio 
possibilities if the two pots were *not* linked in any way.

(the circuit could then blow up for all i know about it..)

>Howdy,
>
>  Can'tyou change the response of the pots to what you
>want by adding external resistors? I don't remember
>where I saw it, but external resistors can be
>configured to make a pot do just about anything.
>Rig
>
>
>--- Jason Proctor <jason at redfish.net> wrote:
>
>>  can an awkward dual pot be replaced by two less
>>  awkward single pots?
>>
>>
>>  >-----Original Message-----
>>  >
>>  >>  What are these pots?
>>  >>  Dual 100k reverse audio taper?
>>  >Not only these: R229 R239 R249 are 500Ohm/500kOhm
>>  dual, rotary, reverse,
>>  >audio.
>>  >
>>  >Maybe they could be simulated by ultrasonic pulse
>>  width modulation switched
>>  >resistors under microprocessor control.
>>  >Which would have the extra advantage of allowing
>>  hands-off control.
>>  >
>>  >paul perry Melbourne Australia
>>  >
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>
>
>
> 
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