[sdiy] 4046 VCO

[Tim Ressel]

I'm running mine on 5 volts. also an issue?


On 7/5/2018 4:47 PM, Jay Schwichtenberg wrote:
> I'd say using a 5V part in a 15V circuit might be a problem.
>
> Also look on Muff's. There are particular brands of the 15V parts that work
> and others that don't work well.
>
> Jay S.
>
> -----Original Message-----
> From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of Tim
> Ressel
> Sent: Thursday, July 05, 2018 4:20 PM
> To: SYNTH DIY
> Subject: [sdiy] 4046 VCO
>
> 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