I think there were three types of Diamond C tops, the first was all brass, the second was pot metal with a brass sound tube, the third was all pot metal.
The later Edison reproducers are made of a better pot metal that expands very slightly, but does not crack or flake. With the large top reproducers this was around serial number 50,000. Steve > Hi, > Can anyone tell me if the Edison Diamond "C" reproducer used in the > Amberola models, is made of Pot metal and therefore suffers damage due to > the brittle metal ? I believe there were two types of Diamond "C", the > early one having a nickle coated finish and the later one being finished > in black. Were both versions made of the same material (ie) Pot metal. > Thanks > Richard. > P.S. >
