[sdiy] Adding offset to vactrol??

[Dan Snazelle]

thanks ian

i will try that tommorow!!!




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> Date: Tue, 3 Jun 2008 14:09:25 -0600
> To: tom at electricdruid.net; subjectivity at hotmail.com
> From: ijfritz at comcast.net
> Subject: Re: [sdiy] Adding offset to vactrol??
> CC: synth-diy at dropmix.xs4all.nl
> 
> At 01:13 PM 6/3/2008, Tom Wiltshire wrote:
> 
>>You're trying to get the pitch of the 4024 square output turned into
>>a pitch CV, right?
>>
>>If you've tried this with a LM2917 and found it wanting, I'm afraid
>>you're unlikely to do better with anything based on a vactrol. There
>>may be other chips available that would do a better job for audio
>>than LM2917, but I'm afraid I don't know of any. Perhaps someone else
>>has more experience with Freq-to-voltage ICs?
> 
> The LM331 is *very* accurate, and there are various circuits in the data 
> sheet and app notes.
> 
> Ian 
>