While I have yet to disassemble a C250 or C19, the mounting arrangement looks just like my A250, in which case actually there is no wooden "motor board" at all. The metal base plate rests on supports underneath and the wood you see around the base plate is "false work," i.e., basically just boards laid in to cover up the holes that would otherwise be there.Sansenoi wrote:Interesting motor board. ... It looks like your board is wooden and recesses away from the cabinet interior. .... This is my first look at the inside of your type of edison. Looks nice!
This was all an elaborate, and rather clever, scheme to avoid infringing Victor patents. You can find the background about this in chapter 3 of Frow’s “The Edison Disc Phonographs and the Diamond Discs.”
Clay