The pulsating direct currents are then passed through a filtering reactance coil, called a reactor, and one or more condensers, and these smooth them out until they approximate a continuous direct current.
"The Radio Amateur's Hand Book"
A. Frederick Collins
The Plate and Grid Circuit reactance Coils.
"The Radio Amateur's Hand Book"
A. Frederick Collins
The Filter reactance Coil.
"The Radio Amateur's Hand Book"
A. Frederick Collins