Did some experimenting today. 8 turns of wire around the primary will get me 1.5 VAC into a 1.5 ohm load. 4-5 more should get me 2.5 VAC to power the 2X2 rectifier filament. The challenge now is to find wire that can handle 2A or more, 2kV or more and fit around the primary. This experiment is using 600 volt wire and there's no more room.
I suppose I can use enameled wire and some Kapton tape. I believe it is rated for 7,000 volts/mil. After all I'm not concerned about the windings shorting to each other. It's the primary and core I need to worry about.
