[sdiy] twisted pairs?

[George Hearn]

Twisting two wires together and running them through the instrument together
means (in theory) that both wires will experience the same pickup of noise
and interference.  By taking the differential between the two wires at the
receiving end one is able to reject the common mode signal (the noise).  In
my opinion, twisting a ground wire with your signal is not likely to do an
awful lot and you'd be better off just using the ground as a shield.  George

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of John Mahoney
Sent: 29 November 2008 16:03
To: Dan Snazelle; sdiy
Subject: Re: [sdiy] twisted pairs?

At 07:49 AM 11/29/2008, Dan Snazelle wrote:


>i was reading in the art of electronics that an ordinary twisted 
>pair can reduce some digital clocking noise.
>
>i was wondering if all this is is twisting a wire connected to 
>ground with the wire you are trying to protect?

Yes, I believe that's it.

John 

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