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Here's one based on a 1496 balanced modulator chip (readily available)
that works well:<br>
<a href="http://home.comcast.net/%7Esbernardi/elec/og2/og2_ringmod.html">og2
1496 Ring Modulator</a><br>
<br>
Linium wrote:<br>
<blockquote type="cite"
cite="mid200406240336.30244.intent@netpratique.fr">
<pre wrap="">Thank you everybody for all the answers i gathered ! :)
So from my own sum-up, AD633 based design would be the most accurate:
I found one from Roman Sowa, here :
<a class="moz-txt-link-freetext" href="http://www.sowa.synth.net/rm.html">http://www.sowa.synth.net/rm.html</a>
Ken Stone on his own quest for beautiful raw sound prefered a germanium
matched diodes design with transformers:
<a class="moz-txt-link-freetext" href="http://www.cgs.synth.net/modules/cgsrr.html">http://www.cgs.synth.net/modules/cgsrr.html</a>
Jurgen Haible give a schemo on his web of an OTA based design that would sound
interesting with some non-linearities:
<a class="moz-txt-link-freetext" href="http://www.oldcrows.net/~jhaible/tonline_stuff/jh1_ring.gif">http://www.oldcrows.net/~jhaible/tonline_stuff/jh1_ring.gif</a>
A very simple design from ARP:
<a class="moz-txt-link-freetext" href="http://www.simple-answer.com/ARPring.gif">http://www.simple-answer.com/ARPring.gif</a>
The Don Buchla's design:
<a class="moz-txt-link-freetext" href="http://rubidium.dyndns.org/~magnus/synths/companies/buchla/Buchla_4100_4_200.jpg">http://rubidium.dyndns.org/~magnus/synths/companies/buchla/Buchla_4100_4_200.jpg</a>
Well , they are probably tons of other. Too bad that the Ken Stone's design
seems to require germanium matched diode and transformers, but since i may
order some germanium diode for some guitar FX, may be...
On the other hand, the Jurgen Haible's design appeals to me since it is seems
to be one with an interesting sound.
Last, the ARP one is brain dead easy to build, seamingly.
Thks again for all the inputs, for the noise source i need to think about it a
little more, i will see later.
Cheers,
Linium
</pre>
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