[sdiy] Fet to short pedal input?

[Mattias Rickardsson]

On Fri, 28 Nov 2025 at 22:12, brianw <brianw at audiobanshee.com> wrote:

> On Nov 28, 2025, at 2:09 AM, Roman Sowa <modular at go2.pl> wrote:
>
> > 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
>
> 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?
>

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.
For real muting, where the signal needs to be muted for real, I've seen and
used FETs and CMOS switches/muxes. :-)

/mr
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