[sdiy] Ringmod not working

[simon.oo.o at xs4all.nl]

Hi Rutger,

Did you connect the diodes the right way round? Did you connect pin 7 to
ground and pin 14 to the positive supply voltage?

What are the voltages on the outputs of each gate (pins 10, 11, 3, 4),
without signal?
What happens if you connect the positive supply voltage to input 1, and to
input 2?

The input voltage levels should exceed about half of the positive supply
voltage of the circuit.


Rutger Vlek zei:
> 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
>
>
>


Vriendelijke groet,

Simon Brouwer
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