[RFI] buying a AC adapter

Aaron Kreider aaron at campusactivism.org
Fri Apr 26 19:29:47 EDT 2013


What should I look for in an AC adapter for low RFI?
I know that switched adapters tend to be bad.  However, I also used to 
have a bad linear adapter cause RFI directly to a shortwave radio that 
was plugged into it.

I'm looking for a new adapter for my router.  9V.  600ma.  center 
positive.  2.5 mm x 5.5 mm.

Are class 2 adapters mostly or entirely linear?  I looked at some 
adapters and they either say switching or class 2.

Are switched power supplies considering smaller than linear?

Thanks,

Aaron


More information about the RFI mailing list