[Amps] Regulation issues when using a Variac

[jeremy-ca]

I rember that this was discussed some time ago but couldnt find it.

I would like to use one big PS (5 KV@ 2A CCS) left over from an old AM BC TX 
to run several amps with different HV requirements. These will all be in the 
1200-1500W range and only one would be in use at a time. They require 2500 
to 3500V.

Would a 5KVA Variac provide acceptable performance or are there better 
devices in the SS world?

Carl
KM1H