[sdiy] 4069 VCO again

[Scott Gravenhorst]

I've never tried it, but I did think about it.  

I don't see any reason it would not work.


"Jay Schwichtenberg" <jays at aracnet.com> wrote:
>While we're on the subject has anyone built this VCO using a CD4007 instead
>of a CD4069?
>
>Thanks
>Jay
>
>> -----Original Message-----
>> From: owner-synth-diy at dropmix.xs4all.nl
>> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of jbv
>> Sent: Monday, October 04, 2004 1:52 PM
>> To: synth-diy at dropmix.xs4all.nl
>> Subject: [sdiy] 4069 VCO again
>>
>>
>> Hi,
>>
>> I have a couple more questions about the 4069 VCO
>> described here :
>> http://www.uni-bonn.de/~uzs159/vco4069.html
>>
>> - I didn't found anything about stability & calibration...
>> any clue ?
>>
>> - I was wondering how this little thing would behave
>> in a polyphonic context (several such VCOs in parallel)...
>> any risk to see them lock together ? decoupling issues ?
>>
>> - how to modify it to accept 1V/oct VC from a uC + DAC
>> + SH expo converter ? I guess it'll make the circuit even
>> simpler...
>>
>> Thanks,
>> JB
>>
>>
>
>

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-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
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