EarlyTelevision has both the riders and the sams for the Dumont.
http://earlytelevision.org/tv_schema...ms_dumont.html
The riders has an in depth look on how the circuits work.
I got a bunch of mica caps from Justradios to hopefully finish out my RA-103. I'll get to it Wednesday. Please let it fix my high B+ and undimmable brightness!
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Matt Davala