Edison C and H reproducers: how different are they?

[Menophanes]

Just how much difference is there, apart from the obvious issue of the stylus, between Edison's Model C and Model H reproducers? I once owned examples of both, and the only distinctions I could see were the diaphragm (the C had a mica diaphragm, which I know was changed to copper in later examples) and the fact that the H had no holes in the tail of the weight. (I suppose this meant that the weight of the H was fractionally heavier.) If one were to install a 4-minute stylus in a later C would it be as good as an H, and vice versa?

Oliver Mundy.

[phonojim]

I don' know why you couldn't. I have worked on many examples of both and the only difference I have noted was the stylus bar, assuming a a copper diaphragms in the C. I once replaced the 4 min. stylus bar in an L with a two minute from a C in order to play 2 minute cylinders on my 1A until I acquired an M reproducer and it worked very well.

Jim