Power supply pi filter

Thread Starter

Wendy

Joined Mar 24, 2008
23,865
I had an old 15 volt power supply to my computer speakers getting pretty crispy. So I bought a new one. Unfortunately it is a switcher and very noisy to these old speakers.I was thinking about installing a filter along these lines.
Power supply pi filter.png​

I remember reading on these kinds of chokes that polarity matters. Before I build it I was just wanting to get a second opinion.
Parts Capacitor, Choke coil.
 
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