Here's the schematic and tube layout diagram in case anyone's curious.
http://antiqueradio.org/art/temp/Phi...Schematic1.jpg
http://antiqueradio.org/art/temp/Phi...Schematic2.jpg
http://antiqueradio.org/art/temp/Phi...TubeLayout.jpg
These are big files. I'd copy 'em to your local machine and view there.
I'm not going to keep these in this temporary location forever, so download now or forever hold your peace.
Phil