Do CLC filters work well at low current draw?

[leadbelly]

I have seen CLC filters used in power amp regulation, obviously. But I was planning to build a CLC filtered unregulated PS for my JFET preamp and was unsure if a low current draw (low voltage drop across L) application would work well for this. The actual components I was planning to use were GI822 fast recovery diodes for the bridges, Nichicon 1000uF/50V for the C's, and a Panasonic 3.3mH line filter for the L. All are already in my parts bin. I've never built a quality preamp before. Am I way off?

[Circlotron]

Capacitor filters have increasing ripple with increasing load.
Inductor filters have *reducing* ripple with increasing load.
So, an LC filter ripple will increase/stay the same/reduce with load depending on the relative values of L&C.
But that doesn't really answer the question...

[sreten]

Simple answer I believe is no.

A valve amp choke runs at around 0.1A, is around 10H
and has series R of around 100R, losing 10V due to DCR.

The lower the current the higher the choke value you need.

With low currents the inductor simply doesn't regulate
and average the ripple, at high currents it does as
stored energy increases with load current (and
frequency), up to when the inductor saturates.

The 3.3mH will be fine as a "hash" filter, but not for reducing ripple.

Suggest using CRC filtering.

sreten.