[sdiy] Panning (again)

[Didier Leplae]

Out of curiosity, why 7.07k resistors? That seems like such a specific value

> On Dec 15, 2020, at 3:27 PM, Mattias Rickardsson <mr at analogue.org> wrote:
> 
> 
> Douglas Self shows this connection as the first example in the Passive Panpots subchapter of his Small Signal Audio Design book, with the description
> "... has several disadvantages, not least the poor offness when panned hard over, caused by the current flowing through the wiper contact resistance to ground."
> 
> The rest is left to the reader, but thanks to separated L/R channels with law-bending resistors, the story ends well. And most of you have already figured out that the next subchapter is even better. ;-)
> 
> /mr
> 
> Den tis 15 dec. 2020 19:34David G Dixon <dixon at mail.ubc.ca> skrev:
>> Hey Team,
>>  
>> I've been thinking about this panning thing, and I came up with the following very simple pot-based panning circuit:
>>  
>> 
>>  
>> The gain responses of this circuit are shown below, and compared with sin and cos responses:
>>  
>> 
>>  
>> I believe that I can create a voltage-controlled version of this simple pot panning circuit fairly easily by replacing the pot with a pair of modified Irwin 2164 circuits.  I did this for the Morphing LFO.
>>  
>> Would this response suffice as an "equal power" panner?
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> 
> <SimplePanner.png>
> <PanPlot.png>
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