Radio Theory and design
Thursday, December 6, 2018
The benefit of filtering a detector output
The signal on the headset with no filter.
Adding the choke cleans it up a bit but still some there
Adding the capacitor to provide an RF bypass to ground produces a clean audio.
Alternately you could bypass the head phone BUT the RF would still be in the phone leads. Better to remove it before the choke.
The capacitor is before the choke in this circuit.
I would suggest trying a bypass cap too.
Share to Twitter
Share to Facebook
Share to Pinterest
Post a Comment
Post Comments (Atom)