Capo Hardening, was: Tuning problems under capo bar

[Kevin E. Ramsey]

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Hello Ron. I there anything you can tell us about hardening the capo. =
I've seen you write about that before. Is this something you do in your =
shop? Do you do it to all pianos? Do you have a method of testing the =
hardness of the capo? Am I asking questions that have already been =
answered? Thanks.=20

Terry Farrell=20

    Terry, I don't know about Ron, but I've thought about it, and I =
don't see how you could harden the capo. I hope I'm wrong, but you hard, =
or temper a metal by heating it until it glows for a certain amount of =
time, and then you quench it in either oil or water. The plate is going =
to act as a gigantic heat sink, not allowing the metal to get to the =
proper temp, and you'd have trouble quenching it even if you did. When =
you heat a metal and allow it to cool by itself, it's called annealing, =
and it softens the metal. Others can tell me if I'm all wet, but that's =
how I understand it.=20

    Kevin E. Ramsey
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