07-24-2014, 09:59 AM
Arran
The filter is a dual one.
The B+ is filtered by field coil.
But the power and biases filter for the oscillator and IF is filtered separately by the choke.
Possibly they wanted better decoupling for heterodyne.
The filter is a dual one.
The B+ is filtered by field coil.
But the power and biases filter for the oscillator and IF is filtered separately by the choke.
Possibly they wanted better decoupling for heterodyne.