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From: Douglas Tate
Date: Wed, 10 Jul 1996 18:57:46 +0100
Subject: Buzzing flap cure

Bobbie G (Hi!) writes:
>You know those heat escape vents on VCRs, stereo amps, CD players, >etc.,
>that are located on top and at the back of some units? Great place to
>stand your harp, mouthpiece up, to gently warm it up for play. Nice if
>you're switching off between one or more harps, too.

A word of warning.
There is a problem with artificial warming of harps. You are applying DRY
heat. This will do a couple of thing which are not necessarily a "good thing"

Dry heat can assist cracking of wooden bodied instruments.
Dry heat can cause the flaps to actually curl. On the more modern pentium
computers ther is a lot of heat coming out the back. Take care.

I think, but haven't proven' that the mechanism which stops flaps buzzing is
the deposition of condensation on the flap and plate, not the temperature.

Mind you, in Tallahassee the humidity may be so high that the harps end up
dripping after a session on the machinery.

Some flaps are twisted and that is why they buzz, best change for a new one.
Most buzz because the two layers are partly stuck together, moist blowing
will usually free this situation (takes about 2-3 mins at the most. more
than that, change the valve)

Douglas T