[sdiy] Chris MacDonald "Balanced Modulator"

Scott Gravenhorst music.maker at gte.net
Thu Mar 12 03:51:06 CET 2009


alfred.pear at gmail.com wrote:
>Has anyone built this?
>http://www.evenfall.com/diy/balmod.pdf
>
>I'm not hearing strong sidebands that one might expect from a ring
>modulator...it seems more like a VCA..
>
>Any reports?
>

What sorts of inputs have you tried?  

To experience sidebands, you need to input audio rate signals into both inputs.
 If one input is a slow slewing waveform, like an LFO or an envelope, then the
circuit will perform very similarly to a VCA.


-- ScottG
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-- Scott Gravenhorst
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