A little persistence turned this up;
This one is ORIGINAL and has two 6BE6 and a 6H6 as the rectifier....interesting.
http://www.youtube.com/watch?v=mqIoHR7pq6U
My unit was heavily modified with an on-board, fixed frequency modulator powered by a battery. Not only that, the attenuator switch was replaced with a pot to adjust the modulation level.
It seems like finding a schematic to return it to original may be a long shot. I just plan to do the alignment as per the video using a frequency counter.