
<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Great reference but that’s not it.<div class=""><br class=""></div><div class="">Basically, I’m trying to nut out a Sallen-key filter using diodes as current controlled resistors in a ladder/differential topology to remove the CV-bleed… but I can’t help but think I’ve seen it before.</div><div class=""><br class=""></div><div class="">Ben.<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 8 Feb 2019, at 4:01 pm, Lloyd Abbott <<a href="mailto:lloydabbott94@gmail.com" class="">lloydabbott94@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div dir="ltr" class="">My guess is that you're thinking of Tim Stinchcombe's paper, "Analysis of the

Moog Transistor Ladder

and Derivative Filters," where he compares transistor and diode ladder filters.<div class=""><br class=""></div><div class="">Link:</div><div class=""><a href="http://www.timstinchcombe.co.uk/synth/Moog_ladder_tf.pdf" class="">http://www.timstinchcombe.co.uk/synth/Moog_ladder_tf.pdf</a> </div></div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Feb 8, 2019 at 8:27 AM Ben Riggs <<a href="mailto:benalog1977@gmail.com" class="">benalog1977@gmail.com</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi SDIY Peeps,<br class="">

<br class="">

The last week I’ve been musing about filter designs, and (by default) to solve the CV bleed through I keep thinking ladder design. Then I keep remembering a document that I can’t reference that had different filter topologies based about the ladder design.<br class="">

<br class="">

Can anyone help finding the document?<br class="">

<br class="">

Cheers,<br class="">

Ben.<br class="">

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