<div>I built an ARP 4 pole low pass that was a copy of the Moog ladder design and was surprised to find I could mimic pretty closely the sound of my MOTM 440. There are subtle differences though.</div>
<div> </div>
<div>peng</div>
<div> </div>
<div><a href="http://home.comcast.net/~peng5002/mainpage.htm">http://home.comcast.net/~peng5002/mainpage.htm</a></div>
<div> </div>
<div><br><br> </div>
<div><span class="gmail_quote">On 12/5/05, <b class="gmail_sendername">Jeff Farr</b> <<a href="mailto:moogah@gmail.com">moogah@gmail.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">According the te archives, JH managed to find some of the patents and<br>based his circuit around them. Perhaps he still knows where they
<br>could be seen?<br><br>On 12/5/05, Sean Costello <<a href="mailto:seancostello2003@comcast.net">seancostello2003@comcast.net</a>> wrote:<br>> Does anyone know how closely related the MOTM-440/JH clone is to the
<br>> original circuit inside the SSM 2040? My impression was that the circuit<br>> topology was based on deduction and analysis, but did anyone ever track down<br>> a schematic? Or were they all destroyed by PMI?
<br>><br>> Also, can anyone describe the nonlinear effects of the SSM 2040, as to how<br>> they differ from the Moog ladder? I have my ideas, but would like to see if<br>> they sync up with other people's ideas.
<br>><br>> Thanks,<br>><br>> Sean Costello<br>><br>> P.S. I work at Analog Devices (which acquired the SSM line), and have asked<br>> around if we have the SSM 2040 schematics, with no results.<br>>
<br>><br><br></blockquote></div><br>