[sdiy] sdiy, real ring modulator schematics

[______pH]

btw:  anyone have that passive ring mod schemo from Synthfool?
anyone  build it?  results?  interesting?  ( i'm not expecting hi-fi)
best,
pH



Magnus Danielson wrote:

> From: "Happy Harry" <paia2720 at hotmail.com>
> Subject: Re: [sdiy] sdiy, real ring modulator schematics
> Date: Thu, 12 Apr 2001 22:26:18 -0000
>
> > As I understand it... no. The diodes are biased on by the carrier, and the
> > signal is modulated by the varying resistance of the diodes... so
> > the signal should be small and NOT turn the diodes on.
>
> Right. Real ring-modulators is used even with very faint signals.
> We often use diodes below the 0.7V you know ;)
>
> > Yes the signal is AC coupled, but the carrier is not. This is like a
> > VCA as used in the Koeg MS-50 filter... but it is four quadrant instead of
> > two.
>
> Not really, not really.. look again.
>
> > I think....   ;^)
>
> Good disclaimer Harry!
>
> Cheers,
> Magnus