[sdiy] Ringmod not working

[Tim Ressel]

Hi,

Hard to say without being there, but here are a few
things to (double)(triple) check:

IC has power and ground?
Diodes are in the right way?
Input amplitudes high enough?

Remember the thresholds for cmos are 1/2 Vcc. So if
you are running +12V Vcc, the input signal will have
to be higher that +6V to trigger the 4011.

Hope that helps!

--TimR


--- Rutger Vlek <rutgervlek at hotmail.com> wrote:

> Hello everyone,
> 
> i built a Ring Modulator based on the one in this
> schematic:
> 
> http://www.ele4music.com/pdfs/sbm.pdf
> 
> And i can't get it to work. I have an Oakley VCO and
> Oakley LFO (both 
> working) going to the inputs, and nothing comes out.
> I checked the power, 
> the HCF4011B pin-out and the other components.
> Everything is ok, but still 
> it's not working....
> 
> Perhaps some knows what's going on inside my
> RingMod?
> 
> Kind Regards,
> 
> Rutger
> 
> 
> 


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