[sdiy] Unique sounding modules that can't have voltage control?

[Neil Johnson]

Hi,

Mattias Rickardsson wrote:
>
> Den tors 8 feb. 2024 00:35cheater cheater via Synth-diy <synth-diy at synth-diy.org> skrev:
>>
>> On Wed, Feb 7, 2024 at 11:53 PM bbob <fluxmonk at gmail.com> wrote:
>> >
>> > classic ring mod, with actual germanium diodes and good-quality transformers, and nothin' else
>>
>> Thanks - what sort of parameters are there to this? I thought this was
>> purely a multiplier, what am I missing?
>
>
> A "real" ring modulator is more of a switching device, not a multiplier.

Exactly right.  See Cowan's patent.

But even then, you could in principle add some voltage control by
adding a third winding to one/both transformers so you can inject a DC
current to bias the magnetic fields.  Look up "magnetic amplifier".

Neil