[sdiy] XOR as 'digital' ring modulator

[Dave Leith]

not sure but isn't this what the ARP Odyssey uses for a ring mod or
maybe it's 2 nand gates

On Tue, Nov 9, 2010 at 2:18 PM, Colin f <colin at colinfraser.com> wrote:
>
>> > You can't modulate the polarity without modulating the amplitude.
>> > The polarity is the sign of the amplitude.
>>
>> Yes, and therefore you are modulating the "sign" and not the
>> "amplitude".
>
> Well if we want to get pedantic about it, when you invert the sign of a
> square wave with anything other than a perfect duty cycle of 50%, you shift
> the DC level, so you would change the RMS amplitude.
> Depends on which definition of amplitude you're using.
> But I know what you mean.
>
> Cheers,
> Colin f
>
>
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