[sdiy] Ferrite Beads

[karl dalen]

I hate Ferrite bed's.

--- Den fre 2011-02-04 skrev Harry Bissell <harrybissell at wowway.com>:

> Från: Harry Bissell <harrybissell at wowway.com>
> Ämne: Re: [sdiy] Ferrite Beads
> Till: "Stewart Pye" <stewpye at optusnet.com.au>
> Kopia: "Synth DIY" <synth-diy at dropmix.xs4all.nl>
> Datum: fredag 4 februari 2011 00:29
> Ferrite beads could help on inputs,
> they are lossy and would tend to stop RF from entering
> further into an enclosure where it might re-radiate.
> 
> They would work better with lower input impedances where
> currents were higher (no current, no effect...)
> 
> H^) harry
> 
> 
> ----- Original Message -----
> From: Stewart Pye <stewpye at optusnet.com.au>
> To: Synth DIY <synth-diy at dropmix.xs4all.nl>
> Sent: Wed, 02 Feb 2011 16:15:45 -0500 (EST)
> Subject: [sdiy] Ferrite Beads
> 
> It's common (good practice) practice to put ferrite beads
> on the power 
> supply inputs to a module. Would it also be good practice
> to put them on 
> audio inputs to a system that uses banana sockets
> (unshielded cables), 
> or does RC filtering at your input op amp do just as good
> or better job?
> 
> Regards,
> Stewart.
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> -- 
> Harry Bissell & Nora Abdullah 4eva
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