[sdiy] Chris MacDonald "Balanced Modulator"

[Tim Ressel]

The LM1496 is a very old design. I decided to take things to the extremes. First I made a ring mod out of a new design multiplier:

http://www.analog.com/static/imported-files/Data_Sheets/AD633.pdf

Then, just for giggles, I made a ring mod out of vacuum tubes:

http://home.comcast.net/~t.ressel/TUBERINGMOD.pdf

Bases covered.

--TimR


--- On Wed, 3/11/09, alfred.pear at gmail.com <alfred.pear at gmail.com> wrote:

> From: alfred.pear at gmail.com <alfred.pear at gmail.com>
> Subject: [sdiy] Chris MacDonald "Balanced Modulator"
> To: synth-diy at dropmix.xs4all.nl
> Date: Wednesday, March 11, 2009, 7:34 PM
> 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?
> 
> -A
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