[sdiy] SSM2164 VCA

Stewart Pye stewpye at optusnet.com.au
Sat Oct 30 21:31:51 CEST 2010

David G. Dixon wrote:
>> Good point about the noise Neil. The LM431 and a few resistors would do
>> for this and it's less than 20 cents.
> I've used 79L05 in my VCA design.  Will this be an effective antidote to
> rail noise?
I would think so. The downsides to using a 79L05 are you need an output 
capacitor, and they're not highly accurate but should be fine for this 
application. I was thinking I may take that route too...


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