[sdiy] Relays or reed switches for routing?

Pete Hartman pete.hartman at gmail.com
Mon May 31 14:36:28 CEST 2021

Many of the smaller relays you would want to use have limited on times --
i.e. you wouldn't want to use them as a toggle replacement.  If you were to
go down this path make sure you read the data sheets closely.

Once upon a time I was looking at how I could replace multi-pole switches
with spdt, and relays were on the table until I found this out.  For most
applications good analog switches (e.g. DG*) are sufficient.  In my case
V104 fets did well for the rest.


On Mon, May 31, 2021 at 7:09 AM Gordonjcp <gordonjcp at gjcp.net> wrote:

> On Sun, May 30, 2021 at 11:22:38AM +0200, cheater cheater wrote:
> > Why can I not use relays to switch audio? What's wrong with relays?
> >
> > BTW, I was thinking of acoustically dampening relays. EG use sound
> > proofing foam.
> They're electrically noisy as well as mechanically noisy.  They're
> unreliable when you use them for switching tiny currents.  They introduce a
> lot of distortion.
> Literally nothing sane uses relays in the audio path.
> --
> Gordonjcp
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