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<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">The circuits seems to be similar to this one – so yes the CA3046 version (but without the CA3046 chip itself but matched transistor pairs):<o:p></o:p></span></p>
<p class="MsoNormal"><a href="http://www.yusynth.net/Modular/EN/MOOGVCF/index.html"><span lang="EN-US">http://www.yusynth.net/Modular/EN/MOOGVCF/index.html</span></a><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri Light",sans-serif;color:black">Ciao<br>
Peter<br>
<br>
</span><span lang="DE-AT" style="font-family:"Calibri Light",sans-serif;color:black"><a href="http://www.ullrich.at.tt" target="_blank"><span lang="EN-US">http://www.ullrich.at.tt</span></a></span><span lang="EN-US" style="font-family:"Calibri Light",sans-serif;color:black">
(my webpage)<br>
</span><span lang="DE-AT" style="font-family:"Calibri Light",sans-serif;color:black"><a href="http://www.rc100-usb.at.tt" target="_blank"><span lang="EN-US">http://www.rc100-usb.at.tt</span></a></span><span lang="EN-US" style="font-family:"Calibri Light",sans-serif;color:black">
(Roland Sampler Tool)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-AT" style="font-family:"Calibri Light",sans-serif;color:black"><a href="http://synpro.heimat.eu/datadial.htm"><span lang="EN-US">http://synpro.heimat.eu/datadial.htm</span></a></span><span lang="EN-US" style="font-family:"Calibri Light",sans-serif;color:black">
(DataDial Synth Addon)</span><span lang="EN-US" style="font-family:"Calibri Light",sans-serif"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>Von:</b> Synth-diy [mailto:synth-diy-bounces@synth-diy.org]
<b>Im Auftrag von </b>Ullrich Peter<br>
<b>Gesendet:</b> Dienstag, 20. Februar 2018 16:23<br>
<b>An:</b> Jean-Pierre Desrochers <jpdesroc@oricom.ca>; synth-diy@synth-diy.org<br>
<b>Betreff:</b> Re: [sdiy] Behringer Model D PCB.. design decrypted..<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Hi!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Have a look at the Model D schematics Uli Behringer posted on gearsluts a while ago: VCF is on page 3<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><a href="https://www.gearslutz.com/board/electronic-music-instruments-and-electronic-music-production/1142144-behringer-mini-model-d-good-idea-36.html#post12494130">https://www.gearslutz.com/board/electronic-music-instruments-and-electronic-music-production/1142144-behringer-mini-model-d-good-idea-36.html#post12494130</a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri Light",sans-serif;color:black">Ciao<br>
Peter<br>
<br>
</span><span lang="DE-AT" style="font-family:"Calibri Light",sans-serif;color:black"><a href="http://www.ullrich.at.tt" target="_blank"><span lang="EN-US">http://www.ullrich.at.tt</span></a></span><span lang="EN-US" style="font-family:"Calibri Light",sans-serif;color:black">
(my webpage)<br>
</span><span lang="DE-AT" style="font-family:"Calibri Light",sans-serif;color:black"><a href="http://www.rc100-usb.at.tt" target="_blank"><span lang="EN-US">http://www.rc100-usb.at.tt</span></a></span><span lang="EN-US" style="font-family:"Calibri Light",sans-serif;color:black">
(Roland Sampler Tool)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-AT" style="font-family:"Calibri Light",sans-serif;color:black"><a href="http://synpro.heimat.eu/datadial.htm"><span lang="EN-US">http://synpro.heimat.eu/datadial.htm</span></a></span><span lang="EN-US" style="font-family:"Calibri Light",sans-serif;color:black">
(DataDial Synth Addon)</span><span lang="EN-US" style="font-family:"Calibri Light",sans-serif"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>Von:</b> Synth-diy [<a href="mailto:synth-diy-bounces@synth-diy.org">mailto:synth-diy-bounces@synth-diy.org</a>]
<b>Im Auftrag von </b>Jean-Pierre Desrochers<br>
<b>Gesendet:</b> Dienstag, 20. Februar 2018 15:41<br>
<b>An:</b> <a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a><br>
<b>Betreff:</b> [probably spam] Re: [sdiy] Behringer Model D PCB.. design decrypted..<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Looking at the upper right pcb section I can see<br>
the VCF region (around VR11 and VR12)<br>
that uses the low pass Moog ladder design<br>
(C77,78,79,80 with T28,29,30,31,32).<br>
But what about the original ua726 based VCO's ??<br>
Did Behringer use an older (discrete) VCO design<br>
or they made the ua726 design using other type of matched NPN pairs ??<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Curious ...<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">JP<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">********************************************************************************<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Le 2018-02-20 02:46, Mike Beauchamp a écrit :<o:p></o:p></span></p>
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<pre>For those interested in what the Behringer Model D circuit board looks like, I took a full res picture while I had it apart:<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre><a href="http://mikebeauchamp.com/wp-content/gallery/blog-2018/behringer-model-d-pcb-fullsize.jpg">http://mikebeauchamp.com/wp-content/gallery/blog-2018/behringer-model-d-pcb-fullsize.jpg</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Mike<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Synth-diy mailing list<o:p></o:p></pre>
<pre><a href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</a><o:p></o:p></pre>
<pre><a href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a><o:p></o:p></pre>
</blockquote>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"> <o:p></o:p></span></p>
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<pre>-- <br>« L'indépendance, c'est comme un pont : <o:p></o:p></pre>
<pre>avant, personne n'en veut, après, tout le monde le prend. »<o:p></o:p></pre>
<pre>Félix Leclerc<o:p></o:p></pre>
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