[sdiy] reasonable source for NE571?

[Stewart Pye]

There's a mixer example in the data sheet. You'll just have to 
scale/level shift the control voltage input. You could look at designs 
people have done for VCF's etc for ideas on that.

Stew.

Dan Snazelle wrote:
> The 2164 eh? Ok. Ill go take a look at the data sheet. any examples out there?
>
> Btw, can you use the 2164 as a "pot replacer" , in other words the way you can add cv to a circuit with an ota?
>
>
> Thanks
>
> Sent from my iPhone
>
> On Oct 20, 2010, at 4:02 PM, Tom Wiltshire <tom at electricdruid.net> wrote:
>
>   
>> I agree with Stewart really, that the 2164 is a better option, but if you want them, 571's are all over ebay. Search for NE570, NE571, and SA571. You can 50 of those for $55.
>>
>> T.
>>
>>
>> On 20 Oct 2010, at 20:10, Stewart Pye wrote:
>>
>>     
>>> Hi Dan,
>>>
>>> If you want to make a voltage controlled mixer you'd be better off using an SSM2164 / V2164.
>>> You can get the V2164 from magic smoke.
>>>
>>> Cheers,
>>> Stewart.
>>>
>>>
>>> dan snazelle wrote:
>>>       
>>>> looking into making a voltage controlled mixer but cant find these 571 chips except at one place for $5 a piece which is too high!
>>>> I know that Cool audio makes a new version but can't find that anywhere.
>>>>
>>>> any info appreciated
>>>>
>>>>
>>>> thanks
>>>>
>>>>
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