[RFI] AC Line filters

Mark Tyler k5gq at juno.com
Thu Apr 3 12:39:34 EDT 2008

I built my own.

It was out of the ARRL handbook. (1960s maybe)

I believe # 18 gage wire 20 turns on 1/4 dia. at one end there was two capacitors going to the ground.

This will cured conducted RF and not radiated. 


-- w70m at comcast.net wrote:
Bought a new Nordic Trac treadmill, Model 1500.  It puts out more hash than a diner on a busy day, at some speeds.  The manufacture recommends a Radio Shack AC line filter.

Radio Shack no longer carry the $15 line filter.  Is there another source for these relative inexpensive AC line filters.


Rod W7OM
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