[Milsurplus] question re filter caps

[David Ross]

folks -

  I am in the process of resurrecting an old aircraft radio & it's
dynaverter (solid-state dynamotor).  The dynaverter is electrically very
noisy, and I suspect that it's filter cap has dried out and is no longer
doing it's job.

  The dynaverter's main filter cap appears to be a single 3uF wet-slug
tantalum.  What sort of cap should I replace it with?  The dynaverter
puts out 270VDC @ ~70mA, switches at ~2KCs, and space is somewhat
limited.  

  Would it be useful to build in a pi-filter setup with a pair of caps
and a small choke?

thanks
Dave Ross    N7EPI    ross@hypertools.com