<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">I've checked the Arp Odyssey schematics (since it has one of these inputs). The relevant part is attached below.<div class=""><br class=""></div><div class="">The Portamento input jack is a TRS jack connected across the ends of the 1M audio-taper portamento pot. So shorting the Tip and Ring connections disables the portamento. It's not a simple short-to-ground action as I had thought it might be, but any bidirectional switch should work in this position.</div><div class=""><br class=""><div class=""><br class=""><div><img apple-inline="yes" id="B1D4DAF8-D733-433E-9A41-B1DB8EE53F37" width="709" height="250" src="cid:677126EF-E229-4E53-A8B9-5C8488B4EFC8" class=""><br class=""><blockquote type="cite" class=""><div class="">On 27 Nov 2025, at 20:34, el macaco 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="">
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Hi all,</div>
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The portamento pedal input on arps has me thinking of using my midi to cv converter's velocity output (+5V) to activate a fet with the two pedal contacts on the source and drain.</div>
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Can it be this simple? The only power coming from the velocity 5v?</div>
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Thanks,</div>
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Ed</div>
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