hi!
I just brought home my new HV transformer, which was
made to my specifications.:

primary 230V 22A
secondary
two windings, each:
800-1000-1100-1200-1300-1400V at 2A

in this way I can connect the windings in parallell or
serie for a multipurpose HV power unit from
about 110V - 4000V at 2A depending on what
tubes I'll use in the amplifier.
the transformers weight is about 36kg...(80 pounds)

I am right now building a middlepower using
one GU84 with tunable vacuumcapacitors and rollercoil..
it's easy to add another one for more power and I don't
have to build a new HV power unit :-)

at the moment I use this new transformer in my old, small and heavily
modified GLA-1000 with 4xPL519 (transformer outside the case on the floor,
of course!)
as the original transformer is not giving enough power for those tubes.
not much left of the original GLA-1000, added 160m etc etc

I power the tubes heating with stabilized 40V from a separate transformer
as the tubes, which are made for serial heating, are that much different,
they get voltages from 39-41V in serial and I wanted tto have 40V for
each tube :-)

cheers,

cb