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</o:shapelayout></xml><![endif]--></head><body lang=FR-CA link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>The 4035 looks very similar to the 4012.. A Moog ladder ?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>The most evident difference is the use of 3 x CA3086<br>instead of discrete transistors..<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=FR style='font-size:11.0pt;font-family:"Calibri",sans-serif'>De :</span></b><span lang=FR style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Michael E Caloroso <mec.forumreader@gmail.com> <br><b>Envoyé :</b> 15 mai 2026 10:48<br><b>À :</b> jpdesroc@oricom.ca<br><b>Cc :</b> synth-diy@synth-diy.org<br><b>Objet :</b> Re: [sdiy] I'm thinking about making some ARP's VCF modules replicas for sale. But..<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>The 4035 is a good sounding ladder filter. I have the 4034 in my ProSoloist, same circuit except for different input impedance to match the P/S.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><a href="https://vintagetechnologyarchive.com/synth/arp/4035-filter/">https://vintagetechnologyarchive.com/synth/arp/4035-filter/</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>MC<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Fri, May 15, 2026 at 9:42<span style='font-family:"Arial",sans-serif'> </span>AM Jean-Pierre Desrochers via Synth-diy <<a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>Hi list,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>I’m thinking about making some ARP’s VCF modules replicas for sale.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>All the same components and PCB arrangements.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>Completely the same as the originals..</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>But I’m wondering which one(s) would be the best candidate(s)</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>or should I say ‘looked for’. So far the 4012 (Moog lader pursuit)</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>seems to be a good one, and the 4075 (Odyssey, Avatar)</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>could also be good ones.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>I know this is a question of taste but</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA>let me hear what are your thoughts.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA><img border=0 width=366 height=390 style='width:3.8125in;height:4.0625in' id="m_-2506074938610453712Image_x0020_4" src="cid:image001.jpg@01DCE45D.BEE82A90"></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><img border=0 width=862 height=585 style='width:8.9791in;height:6.0937in' id="m_-2506074938610453712Image_x0020_1" src="cid:image002.jpg@01DCE45D.BEE82A90"><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><img border=0 width=871 height=596 style='width:9.0729in;height:6.2083in' id="m_-2506074938610453712Image_x0020_2" src="cid:image003.jpg@01DCE45D.BEE82A90"><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-CA><img border=0 width=349 height=389 style='width:3.6354in;height:4.052in' id="m_-2506074938610453712Image_x0020_3" src="cid:image004.jpg@01DCE45D.BEE82A90"></span><o:p></o:p></p></div></div><p class=MsoNormal>________________________________________________________<br>This is the Synth-diy mailing list<br>Submit email to: <a href="mailto:Synth-diy@synth-diy.org" target="_blank">Synth-diy@synth-diy.org</a><br>View archive at: <a href="https://synth-diy.org/pipermail/synth-diy/" target="_blank">https://synth-diy.org/pipermail/synth-diy/</a><br>Check your settings at: <a href="https://synth-diy.org/mailman/listinfo/synth-diy" target="_blank">https://synth-diy.org/mailman/listinfo/synth-diy</a><br>Selling or trading? Use <a href="mailto:marketplace@synth-diy.org" target="_blank">marketplace@synth-diy.org</a><o:p></o:p></p></div></blockquote></div></div></body></html>