[sdiy] On shielded cable (or not) for audio

[Scott Nordlund]

I wouldn't see shielded wiring as generally being all that useful in a modular synth, at least in most cases.  If each module has its own board and its own panel, the signals aren't going to have a lot of opportunity to interfere.

If you've got something more complicated with a bunch of different circuit boards and analog/digital signals running between them, then you might have more issues with interference (and this certainly comes into play if you're modifying something).  Maybe if you're making a super duper phono preamp/BBD driver/spring reverb/switching power supply module...
----------------------------------------
> From: lanterma at ece.gatech.edu
> To: synth-diy at dropmix.xs4all.nl
> Date: Fri, 3 Jul 2009 18:32:45 -0400
> Subject: [sdiy] On shielded cable (or not) for audio
>
> I've been going through google images looking at the insides of
> people's modulars to get mounting ideas.
>
> I noticed that when running to audio jacks, some folks (like Paul S.)
> (a) use shielded coax-like cable. Others (b) just use a couple of
> wires and twist them.
>
> Thoughts on when (a) is essential (or equivalently, when you can get
> away with (b))?
>
> On pure banana synths I guess you're always in (b) mode anyway.
> Although, Iuppose you could run the shield out to the jack and just
> not connect it there and only have the connection on the board.
>
> In the case of (a) does anyone have a favorite part number?
>
> - Aaron
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