<div dir="ltr"><div dir="ltr">On Fri, 28 Nov 2025 at 22:12, brianw <<a href="mailto:brianw@audiobanshee.com">brianw@audiobanshee.com</a>> wrote:</div><div class="gmail_quote gmail_quote_container"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Nov 28, 2025, at 2:09 AM, Roman Sowa <<a href="mailto:modular@go2.pl" target="_blank">modular@go2.pl</a>> wrote:<br><br>
> BTW, BJTs are most commonly used everywhere for muting output jacks during powerup or whatever other reasons, because it works so much better than FET in this application<br>
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I've only ever seen FET used for muting. In particular, I've seen depletion mode N-FET used because they conduct (to ground, in a mute circuit) when no voltage is applied to the gate. How would a BJT remain in saturation mode when all power is lost to the device?<br></blockquote><div><br></div><div>I'd call this usecase "muting" (with big wavy rabbit ears around it) where the output clicks just need to become less loud, not necessarily silent. Here I've seen and used BJTs.</div><div>For real muting, where the signal needs to be muted for real, I've seen and used FETs and CMOS switches/muxes. :-)</div><div><br></div><div>/mr </div></div></div>