[sdiy] passive ring modulator transformers

[Simon Brouwer]

Hi Scott,
 
Nice! That second circuit looks like what I had in mind, a bit simpler even. I
was thinking of imposing the inverted modulation signal on the left side of the
ring as well, as it is in the transformer ring modulator, but that would
actually serve no purpose at all.
 
Best regards
Simon

> Op 17 januari 2016 om 14:58 schreef Scott Gravenhorst <music.maker at gte.net>:
>
>
> In this image:
>
> http://scott.joviansynth.com/diode_ring_modulators.gif
>
> There are two schematics, one for the well known diode/transformer ring
> modulator and another for a version of the same circuit using resistors.
>
> I've not tried either one of these. Someone had posted these to SDIY
> some years ago and I squirreled them away. I remember that there was
> something not ideal about the resistor method and that adding opamps to
> the design could improve it. I also have a schematic I drew using
> opamps, but I won't post that because I never tested it.
>
> Here:
>
> http://scott.joviansynth.com/diode_ring_mod_2.gif
>
> is another transformerless circuit which I did not test which uses opamps.
>
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