A Simple, Valve Curve Plotter

[pwdrive]

Some schematic references in the links below, I'm sure this could be doable, doesn't seem an expensive way either, if doable it should provide constant voltages that may be required for valve curve plotting, any ideas/comments?

http://www.antiqueradios.com/forums/view...hp?t=34581

http://www.milair.co.uk/ssvr.html

http://www.antiquewireless.org/uploads/1...cement.pdf

Lawrence.