[Amps] High voltage rectifiers for Henry 3K

[José Arturo Molina]

I need to replace the two high voltage rectifiers in a Henry 3K. The 
parts list says 1.2 amps at 15 KV.

Can anyone give me more info on these, or suggest a supplier, can these 
be reliably made with a string of diodes?

Tnx, 73,

Jose Arturo Molina, YS1MS