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</head><body style=""><div>Hi Scott,</div>
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<div>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. </div>
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<div>Best regards</div>
<div>Simon<br><br>> Op 17 januari 2016 om 14:58 schreef Scott Gravenhorst <music.maker@gte.net>:<br>> <br>> <br>> In this image:<br>> <br>> http://scott.joviansynth.com/diode_ring_modulators.gif<br>> <br>> There are two schematics, one for the well known diode/transformer ring <br>> modulator and another for a version of the same circuit using resistors.<br>> <br>> I've not tried either one of these. Someone had posted these to SDIY <br>> some years ago and I squirreled them away. I remember that there was <br>> something not ideal about the resistor method and that adding opamps to <br>> the design could improve it. I also have a schematic I drew using <br>> opamps, but I won't post that because I never tested it.<br>> <br>> Here:<br>> <br>> http://scott.joviansynth.com/diode_ring_mod_2.gif<br>> <br>> is another transformerless circuit which I did not test which uses opamps.<br>> <br>> _______________________________________________<br>> Synth-diy mailing list<br>> Synth-diy@dropmix.xs4all.nl<br>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</div></body></html>