[sdiy] How To Make This Oscillator into a VCO

[Gavin]

Wow! nice circuit, now ill this work with other op amps?  or is it specific
to the properties of the lm324?
----------
>From: patchell <patchell at silcom.com>
>To: bill berzinskas <housenationmedia at yahoo.com>
>Cc: synth-diy at dropmix.xs4all.nl
>Subject: Re: [sdiy] How To Make This Oscillator into a VCO
>Date: Sat, Oct 19, 2002, 4:46 PM
>

>    Yes it can...look in a National Semiconductor data sheet for the
>LM324.  There is a VCO that will produce a triangle that uses no OTAs.
>In fact, this is what I built for my first synthesizer back in 1974.
>Worked a lot better than the Paia 2720 oscilator...in some ways.
>
>bill berzinskas wrote:
>
>>    Thanks for all the good responses..  tons of good info..
>>
>>
>>
>> Next Question:   Can this be done without an OTA?  For the most part,
>> i'm working with standard opamp pieces..
>>
>>
>
>--
> -Jim
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