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From: SNaru~-online.de (Siegfried Naruhn)
Date: Wed, 2 Oct 96 03:04 +0100
Subject: RE: Reed fatigue revisited

Hi Pat,

though fjm opposed your inserting an almost fractured tuning victim into Pat
Missin's Museum of Harmonica Abuse, I could offer you a further "object on
loan".

On 9-2-96 fjm asked for such a tuning victim: >>Anyone care to send me both
halves of a reed that broke along a tuning mark? Not near one along it. fjm<<

I answered on 9-17-96:
>>>..In this case, the reed had 3 (three) deep diagonal tuning marks. When I
examined it's backside, I could clearly see the break line, not parallel to the
scoring but congruent with the opposite tuning mark. ...evidence for my
assertion that tuning by files is the worst method.<<<

Though R. Epping mentioned that to the experience of Hohner/Richmond only some
5% of reed breaks are caused by tuning, I consider tuning by files a very bad
method also by another reason.

When the plate slots are stamped, the plates are turned upside-down because
only the sharp rims of the side the stamping tool comes through the plate (all
natives do understand this?) are sufficient for fixing the reeds.

With other words: an optimal reed vibrating demands such a high precision of
manufacturing that even the direction of the slot stamping has to be considered.
Now, when the plates have finally undergone their accurate 'reeding', the tuner
or 'tuna' appears with his file and damages not only the reed profile but
'manufactures' also deep scars in the carefully adjusted slot rims. Thus, the
tuner ruins the previous effort. Any thoughts?

Siegfried Naruhn Have harp - must repair!