I've built many EHT supplies over decades but have always used capacitive only, ripple-filtering.
Sitting below my desk for many years, is an inductor rated 7,500V, 0.85A CCS, 10 Henries. It came from an industrial RF heater.
I've never seen one used in an EHT ham amplifier supply...has anyone experience of this?
10H, even with just 1uF after it, has a -3dB frequency of 50Hz, so it would be pretty effective at 300Hz (3-phase, full-wave ripple).
But how would the inductive ripple filter respond with an SSB load? What happens if the tube flashes over? Are some extra protections required?
Thanks
Tim
