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MMD > Archives > March 2017 > 2017.03.16 > 06Prev  Next


Sealing Pouches
By John A. Tuttle

Hi All, While work continues on the 'sealants project', I thought I'd
pass along a story from a customer who decided to seal the pouches in
his player piano.

The customer said that the pouches seemed pretty good, but he had read
in the Digest how it was important to seal the leather.  So, he sealed
the pouches with Dow Corning 3140 as I describe in my video about
sealing the pouches in the modern Universal player -- which requires
air-tight pouches.

After completing the job, he said that all of the notes would come 'on'
very smartly.  However, a number of them were slow to turn back 'off'.
Some of them took up to two seconds to turn back 'off'.

After assuring me that he followed my instructions carefully, I concluded
that the pouches were "too tight".  I suggested that he use a small
sewing needle and poke a hole in the offending pouches.  (Much easier
than replacing the pouch.)  A day later he told me that all the notes
were now working fine.

My point is simple.  As authors, we need to be very careful about the
things we advocate in our postings.  We should assume that those who
read the posting have little-to-no knowledge about proper testing
procedures.  Or, we should qualify our statements in such a way that
a novice can't point a finger at us and say, 'so-and-so said I should
(or shouldn't) do this'.

Musically,
John A Tuttle
Player-Care
Brick, New Jersey


(Message sent Thu 16 Mar 2017, 21:11:45 GMT, from time zone GMT-0700.)

Key Words in Subject:  Pouches, Sealing

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