cliff wright wrote:
snip

2. I would be quite sure that an 807 based linear would turn into slag
with 2Kv on the plates,...

Please see http://www.cybertheque.org/homebrew/837_linear

This design is not mine but I documented the layout, construction,
and circuitry of a quad 807 (837) linear from silent key
K9KLN. It used a 2KV power supply

Regards,

Michael