[sdiy] panning vca

[Tom Wiltshire]

Yep, exactly. But what that lower limit should be, I have no idea without trying it.

On 23 Jan 2016, at 09:26, "Matthias Herrmann" <matthias.herrmann at fonik.de> wrote:

> the resistor below the initial control will just limit the pot, no?
> 
>> -----Ursprüngliche Nachricht-----
>> Von: Synth-diy [mailto:synth-diy-bounces at dropmix.xs4all.nl] Im Auftrag von
>> Tom Wiltshire
>> Gesendet: Samstag, 23. Januar 2016 10:20
>> An: Joe
>> Cc: synth DIY
>> Betreff: Re: [sdiy] panning vca
>> 
>> Hi Joe,
>> 
>> 100K input pots are typical, although with the 200K/100K input resistors,
>> the taper will get somewhat distorted. X and Y would usually be Log (signal
>> inputs) and CV would be Lin, as would the initial control. The DC trimmer
>> could be 100K too, since it's feeding a 1M resistor to provide a touch of
>> offset cancellation.
>> 
>> That resistor below the initial control I have no idea about. You'll have
>> to build it and see.
>> 
>> HTH,
>> Tom
>> 
>> 
>> On 22 Jan 2016, at 21:13, Joe <joe.frey at radioles.com> wrote:
>> 
>>> I am planning on building this single as a panning VCA by Richard
>>> Curcio.
>>> 
>>> http://www.sdiy.org/richardc64/mmvca/index.html
>>> 
>>> I can source a CA3080 and since I am only building one I am not worried
>>> about expense. Here's the thing, I don't know what pot values to use for
>>> the trimmers and I am definitely thrown by the current controlling DC
>>> trimmer, though I understand how to wire it. Can anyone take a minute(or
>>> few) to help me figure them out? Thanks, Joe.
>>> 
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>> 
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>