[CAUT] RE : Tight Balancier

[Ted Sambell]

If the heat gun has a 'low' setting, it is quite safe. I have used a hair 
dryer too/

Ted Sambell
----- Original Message ----- 
From: "Marcel Carey" <mcpiano at videotron.ca>
To: "'College and University Technicians'" <caut at ptg.org>
Sent: Saturday, November 11, 2006 4:31 PM
Subject: [CAUT] RE : Tight Balancier


> Jim,
>
> Now you've got me curious about this heating device. Could you explain
> or is it still under patent. ;-)
>
> Marcel
>
>> -----Message d'origine-----
>> De : caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] De la
>> part de James Ellis
>> Envoyé : 11 novembre 2006 15:43
>> À : caut at ptg.org
>> Objet : Re: [CAUT] Tight Balancier
>>
>>
>> Marcel Carey is correct.  I saw that Kawai high-speed film
>> too, and it is possible to have a jack so loose, and cushion
>> felts so bouncy, that at just the right repetition speed the
>> jack will bounce and end up in exactly the wrong place at the
>> wrong time, causing repetition to fail.
>>
>> On the other hand, not long ago I was filling in for another
>> technician, and I ended up tuning for two different concerts
>> in two different places on the same evening.  I had just
>> finished tuning one piano when I got a frantic call from the
>> manager of the other orchestra, which was having final
>> rehearsal before performance.  Several notes were failing to
>> play at all.  The other location was only 20 miles away, and
>> I got there ASAP.  The jacks were too tight.  The relative
>> humidity had increased, and the jacks got even tighter.  They
>> were failing to return at any speed.  A careful application
>> of shrinking solution followed by some heat from a neat
>> little device I had made that heats only the spots that need
>> to be heated, and all was well.  The pianist wanted me to do
>> a stand-by during performance.  I told her why I couldn't,
>> but I assured her that the problem was fixed, and she would
>> have no problem.
>>
>> WARNING:  Do NOT try the heat thing on jack centers using a
>> heat gun, or you may cause the jack tenders to come loose.
>>
>> Jim Ellis
>>
>>
>
>