[sdiy] reasonable source for NE571?

[Dan Snazelle]

I always forget its a quad!!

Thanks for the reminder

Sent from my iPhone

On Oct 20, 2010, at 4:48 PM, Stewart Pye <stewpye at optusnet.com.au> wrote:

> 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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>> 
>> 
>>  
> 
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