
<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=""><div class="">I eat my crow.</div><div class="">I should try that touch switch feature in my teensy.</div><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On May 2, 2021, at 7:48 PM, KA4HJH 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 style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Apr 27, 2021, at 4:16 PM, Benjamin Tremblay 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=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Touch switches are easy to implement but can malfunction. I think Simonton used the same kind of CMOS touch switch you would see in a radio shack book. They usually rely upon AC hum to activate, so might not work well in a Faraday’s cage.<div class="">I had the old Oberheim OB-1 with touch switches. It worked very well. </div><div class="">These days you only see them in things like lamps.</div></div></div></blockquote><br class=""></div><div class="">How about a cold cathode thyratron (that just happens the be a lamp as well)?</div><div class=""><br class=""></div><div class=""><a href="http://www.industrialalchemy.org/articleview.php?item=1084" class="">http://www.industrialalchemy.org/articleview.php?item=1084</a></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">The english translation of the datasheet describes it as "Intended for working with low signals and like a [sic] ionic relay.":</div><div class=""><br class=""></div><div class=""><div class=""><a href="https://www.gstube.com/data/2119/" class="">https://www.gstube.com/data/2119/</a></div><div class=""><br class=""></div></div><div class=""><br class=""></div><div class="">Of tangental interest, here's a mains powered clock that uses them in the ring counters:</div><div class=""><br class=""></div><div class=""><a href="https://www.pa3fwm.nl/projects/neonclock2/" class="">https://www.pa3fwm.nl/projects/neonclock2/</a></div><div class=""><br class=""></div><br class=""><div class="">

<div dir="auto" style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Terry Bowman, KA4HJH<br class="">"The Mac Doctor"<br class=""><br class=""></div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><a href="https://www.astarcloseup.com/" class="">https://www.astarcloseup.com/</a></div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""></div><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">“...the book said something astonishing, a very big thought. The stars, it said, were suns but very far away. The Sun was a star but close up.”—Carl Sagan, "The Backbone Of Night",<span class="Apple-converted-space" style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;"> </span><i style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">Cosmos</i>, 1980<br class=""><br class=""></div></div></div></div>

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