[Amps] Adding 160 Meters to Swan Mark 1

Bill Smith ko4nrbs at yahoo.com
Wed Apr 5 15:05:18 EDT 2023


In the process of adding 160 meters to my Swan Mark 1 linear I found that the replacement filament choke I purchased from MFJ doesn't have the third winding on it like the original.   Looking at the Swan's schematic the third winding is connected to the filament transformer center tap and the other end of it is connected in the center of the tube's filaments and the RF Input.  The filament choke I purchased from MFJ is Part Number 10-15115-1.
How should I go about resolving this?
Thank you,Bill KO4NR


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