<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">I’ve used the H11F1 in a few cases and it can work nicely. I seem to remember the minimum resistance not being low enough to fully silence a modular level signal in a series configuration.<div class=""><br class=""></div><div class="">I think Doepfer also used it in a filter.<br class=""><div class=""><br class=""></div><div class="">epk</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Feb 8, 2020, at 7:25 PM, Matti Palm <<a href="mailto:matti.palm@gmail.com" class="">matti.palm@gmail.com</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=""><div dir="ltr" class="">Feedback modules has made a filter with the h11f1. </div><div dir="ltr" class=""><br class=""></div><div dir="ltr" class=""><a href="https://feedback-modules.myshopify.com/collections/diy-kits/products/lpfet-vcf-diy-kit1" class="">https://feedback-modules.myshopify.com/collections/diy-kits/products/lpfet-vcf-diy-kit1</a></div><div dir="ltr" class=""><br class=""></div><div dir="ltr" class="">I tried to use it in a mute circuit without luck. I don’t remember why I didn’t like it. </div><div dir="ltr" class="">/matti</div><div dir="ltr" class=""><br class=""><blockquote type="cite" class="">8 feb. 2020 kl. 19:04 skrev <a href="mailto:music.maker@gte.net" class="">music.maker@gte.net</a>:<br class=""><br class=""></blockquote></div><blockquote type="cite" class=""><div dir="ltr" class=""><span class=""></span><br class=""><span class=""></span><br class=""><span class="">This has been bugging me because I seem to remember a thread here years ago.  I can't</span><br class=""><span class="">remember what the outcome was, but maybe a search of the archives (for which I seem to have</span><br class=""><span class="">no foo) might find it.  I do remember it was regarding the datasheet circuits mentioned by</span><br class=""><span class="">the OP.  Generally, the feel I think was that under the right circuit circumstances, it can</span><br class=""><span class="">work like a VCresistor.  I remember that the vactrol was compared and is known to work</span><br class=""><span class="">properly as a floating VCresistor albeit slow to change value.  Not an EE here, but looking</span><br class=""><span class="">at the floating resistor circuit I see two current producing electrodes posing as a</span><br class=""><span class="">floating resistor.  I think generally the statement about it's lack of use in synth</span><br class=""><span class="">circuits is due to it not being very good is probably correct.  Looking at the single ended</span><br class=""><span class="">circuits, they are AC coupled...</span><br class=""><span class=""></span><br class=""><span class="">Has anyone experience with H11F1 devices?  Those should be a lot faster than vactrols,</span><br class=""><span class="">probably more consistent, but I don't know if the transfer function is useful in</span><br class=""><span class="">audio/synth circuits.</span><br class=""><span class=""></span><br class=""><span class="">-- ScottG</span><br class=""><span class="">_______________________________________________</span><br class=""><span class="">Synth-diy mailing list</span><br class=""><span class=""><a href="mailto:Synth-diy@synth-diy.org" class="">Synth-diy@synth-diy.org</a></span><br class=""><span class=""><a href="http://synth-diy.org/mailman/listinfo/synth-diy" class="">http://synth-diy.org/mailman/listinfo/synth-diy</a></span><br class=""></div></blockquote></div>_______________________________________________<br class="">Synth-diy mailing list<br class=""><a href="mailto:Synth-diy@synth-diy.org" class="">Synth-diy@synth-diy.org</a><br class="">http://synth-diy.org/mailman/listinfo/synth-diy<br class=""></div></blockquote></div><br class=""></div></div></body></html>