<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="">It seems to me this is a fairly common problem. Panel switches for the Prophet 5 (or similar) are about the same price - $5-6 for the switch and a bit more for the cap. At nearly $7 a switch, you don't want to use a lot of them in your design unless you're aiming at the very top of the market. The Rev.4 Prophet 5/10 have probably $250 of switches on the panel at the prices I would have to pay. <div class=""><br class=""></div><div class="">Still, quality isn't cheap, and hopefully that's why. A lot of these things are still running thirty years later, so that says something about the parts they used.</div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 9 Apr 2025, at 17:24, Todd Sines via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" class="">synth-diy@synth-diy.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="content-type" content="text/html; charset=utf-8" class=""><div dir="auto" class="">Terry, I’m so jealous to hear that you just got off the phone with Tom! I’d love to pick his brain, but… don’t have his # :P<div class=""><br class=""><div class="">Apparently, Randy Pisciano also was on the phone with Tom when he was designing the reSEMble. </div><div class=""><br class=""></div><div class="">I know it would be cheaper to just buy a couple of B 2XMs and “B” done with it… but their approach to Tom did not sit well with me. I just cannot afford OG SEM‘s at the price they are commanding these days. Not that Tom sees any of that money anyway. I don’t know why I sold the one I bought back in 2005 for something like $300 — really kicking myself on that one.</div><div class=""><br class=""></div><div class="">Some more searches turned up the following</div><div class=""><a href="https://groupdiy.com/threads/elma-classic-collet-knobs.79725/" class="">https://groupdiy.com/threads/elma-classic-collet-knobs.79725</a></div><div class=""><br class=""></div><div class=""><a href="https://www.don-audio.com/navi.php?JTLSHOP=ca005bf583d885281708f96c999cfa14&suchausdruck=Elma+Classic+Collet+Knob" class="">https://www.don-audio.com/navi.php?JTLSHOP=ca005bf583d885281708f96c999cfa14&suchausdruck=Elma+Classic+Collet+Knob</a></div><div class=""><br class=""></div><div class=""><a href="https://www.newark.com/elma/020-3520/knob-14-5mm/dp/01M9603?CMP=AFC-OP" class="">https://www.newark.com/elma/020-3520/knob-14-5mm/dp/01M9603?CMP=AFC-OP</a></div><div class=""><div style="display: block;" class=""><br class=""></div></div><div class="">From what I can tell, purchasing one complete knob with a “beak” indicator involves buying three parts, the black glossy cap, the black glossy shaft, and the black glossy “beak” indicator at the bottom. All in this comes to about $7 USD a knob if you’re ordering quantities of under 500. Croak. </div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Todd</div><div class=""><br id="lineBreakAtBeginningOfSignature" class=""><div dir="ltr" class=""></div><div dir="ltr" class=""><blockquote type="cite" class="">On Apr 7, 2025, at 7:52 PM, TERRY SHULTZ via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" class="">synth-diy@synth-diy.org</a>> wrote:<br class=""><br class=""></blockquote></div><blockquote type="cite" class=""><div dir="ltr" class=""><span class="">Hi Folks,</span><br class=""><span class=""></span><br class=""><span class="">Just got off the phone with Tom Oberheim and I quizzed Tome about where he </span><br class=""><span class="">Purchased the knobs for the SEM1-A for the TVS/FVS and 8VS synths.</span><br class=""><span class=""></span><br class=""><span class="">The company is called ELMA Products and look into the Rotary Switch area on their web site.</span><br class=""><span class=""></span><br class=""><span class="">Tom further mentioned that they no longer make the skirts for the knobs, which are collet type and not D or splined .</span><br class=""><span class=""></span><br class=""><span class="">I hope that this helps the folks that send out a email thread on knobs.</span><br class=""><span class=""></span><br class=""><span class="">I use Selco these days and I used them on E-mu products I was designing for Drumulator and Emulator 2.</span><br class=""><span class=""></span><br class=""><span class="">Best regards to my audio friends</span><br class=""><span class=""></span><br class=""><span class="">Terry</span><br class=""><br class=""></div></blockquote><br class=""></div></div></div>________________________________________________________<br class="">This is the Synth-diy mailing list<br class="">Submit email to: <a href="mailto:Synth-diy@synth-diy.org" class="">Synth-diy@synth-diy.org</a><br class="">View archive at: <a href="https://synth-diy.org/pipermail/synth-diy/" class="">https://synth-diy.org/pipermail/synth-diy/</a><br class="">Check your settings at: <a href="https://synth-diy.org/mailman/listinfo/synth-diy" class="">https://synth-diy.org/mailman/listinfo/synth-diy</a><br class="">Selling or trading? 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