Kijanki,
The choke needs to be of "critical inductance" at minimum, for this type of supply to work properly.
Lcrit = V(dc) / I(mA)
So higher voltage and/or lower current require a bigger choke. This type of supply was often used decades ago when capacitance was expensive compared to chokes; once capacitance became cheaper it fell out of favor in the mass market, but it retains its unique advantages to this day.
Happy reading!
The choke needs to be of "critical inductance" at minimum, for this type of supply to work properly.
Lcrit = V(dc) / I(mA)
So higher voltage and/or lower current require a bigger choke. This type of supply was often used decades ago when capacitance was expensive compared to chokes; once capacitance became cheaper it fell out of favor in the mass market, but it retains its unique advantages to this day.
Happy reading!