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Cgs synth

Index last updated: 2026-04-28 23:16 UTC

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Re: real ring mod question

2007-12-16 by sasami@hotkey.net.au

>I've seen in the archive that applying a DC voltage as carrier will
>allow the unit to function as a VCA. Perhaps my understanding of
>transformers is lacking - but wouldn't one need to bypass the
>transformer somehow to get DC into the ring?

The carrier input goes straight into the diode ring already, so there is no
issue. You cannot however apply a DC voltage to the INPUT and expect to
control the carrier.

Often with ring modulators, no distinction is made between the input and the
carrier input, as they are more or less interchangeable at audio
frequencies. However, at low frequencies and D.C. they are not
interchangeable as the transformer blocks D.C. as you suggest.

Ken
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Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
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