[sdiy] Any noise avantage to parallel 2164 VCAs?

David G Dixon dixon at mail.ubc.ca
Mon Jun 18 01:34:01 CEST 2018

I wouldn't bother.  I did tie two 2164s together in parallel in a very early
iteration of the Quadra design, and I seem to remember the outputs
interacting in strange ways.  I may have done something else wrong. 

> -----Original Message-----
> From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On 
> Behalf Of Tom Wiltshire
> Sent: Sunday, June 17, 2018 4:49 AM
> To: Synth-diy at synth-diy.org DIY
> Subject: [sdiy] Any noise avantage to parallel 2164 VCAs?
> Hi all,
> A quick query, if I may: Is there any noise advantage to 
> using two 2164 VCAs in parallel?
> I've got a circuit that uses two VCAs, so there are two 
> others spare on the chip. And then it occurred to me that 
> there might be a minor gain by using them in parallel pairs. 
> It's a case of "well, they're there so we might as well use 
> them" if there's no reason not to.
>  Or would it be better to simply disable the unused sections?
> Thanks,
> Tom
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>        Electric Druid
> Synth & Stompbox DIY
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