This filter was found in Delco's 1965 documentation. It can be implemented with modern components according to the voltage and current to be regulated.
It serves as a reference, since today we can have simpler and more compact solutions. This circuit is...
This circuit is from an old manual from National Semiconductor (Now Texas), using the LM2877 not...
This circuit is from the Motorola Linear Databook published in 1990. The circuit for 1 kHz can be...