[sdiy] 4046 VCO

synthCube info at synthcube.com
Fri Jul 6 01:45:17 CEST 2018


Probably... the Fonik 4046 is ic - dependent as well as a couple of other 4046 based designs we carry here...  will be interesting to learn from others about technical spec differences if any, or something not documented 

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> On Jul 5, 2018, at 5:20 PM, Tim Ressel <timr at circuitabbey.com> wrote:
> 
> Hiya,
> 
> So I built up a Thomas Henry 4046 VCO and ran into an issue: the frequency out is way too high, starting at 55KHz and going up to 175KHz. I checked my schematic and it all looks good except for one thing; I am using a 74HC4046 instead of a CD4046. Is that causing my problem?
> 
> -- 
> --Tim Ressel
> Circuit Abbey
> timr at circuitabbey.com
> 
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