tuning forks-alum. vs steel

[baoli liu]

I would not use aluminum fork,because it is too
sensitive to the temperature.I just had a test a few
days ago about the pitch floating due to temperature
change.you may take a look at the results.

I tested two tuning forks,one is A4 fork made of
steel,another one is G4 fork made of aluminum.three
temperatures are checked--body temperature(97 or
so),room temperature(72) and outside
temperature(12).here is the results

A4 Steel fork: "o cents"(body temperature)."1.5
cents"(room temperature),"6.0 cents"(outside);

G4 aluminum fork: "0 cents"(body temperature),"4.3
cents"(room temperature),"16.3cents"(outside).

Baoli Liu,RPT

--- pianolover 88 <pianolover88@hotmail.com> wrote:
> Wondering which type (Aluminum, blued steel or the
> more expensive (John 
> Walker)nickel plated) of A440 fork is preferred or
> used most.
> 
> Terry Peterson
> 
>
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