(Yeah, I'm a EE. It's in my genes, I think. :-)
The paper's about 380 kB. (I keep forgetting to bring it home.) Assuming I don't forget tomorrow, should I send a copy to your VOM address?
I haven't studied it in detail, but it seems to have a good description of the way the circuit works (along with a couple of simplified schematics). It talks about 2 power levels (600 W and 700 W), but I don't see a reason why those would be magic values (but again I haven't read it closely).
Cheers,
Scott.