Well nothing too serious , Marconi auto alarm -m had a machined cam with the call sign machined round the edge ? I like the idea of a round train track , with the right foil lengths could send Opera
Except it is not a new design!! This how Samual envisaged that messages would be sent! It only a little later that ops became adept at hand forming of the codes and even later reading the inker clack
Hi Graham :-))......I seem to remember the original keyer on GB3VHF was a disc with pegs in which acted as cams closing a pair of contacts, with the disc driven by a small synchronous motor. Alan --
