[Amps] 2x 4cx1500b amp

[Felipe Ceglia - PY1NB]

Hello "Ampers",

I am willing to build a 2x 4CX1500B amp for 160 to 10m usage. Willing to 
use a GM3SEK tetrode board for controlling and protecting it.

As I will need to special order the HV supply transformer, I am thinking 
about asking for a multiple voltage primary and a fixed voltage 
secondary (probably 1250v - 0v - 1250v), so it will be easier to change 
output voltage just changing the primary, instead of dealing with HV. Is 
it a bad idea?

I would like to hear from you if you have built anything like it, or if 
you have something to say.

Also, are there alternatives to the tetrode board?

73,

Felipe - PY1NB