What years were bad brackets for YC products?

[Scott Jackson]

I found this quote from Young Chang in a how-to for technicians about
bracket replacement.

"This was due to an improper mixture of aluminum alloys during
manufacturing, from 1990-1994."

http://www.markstivers.com/valytech/Young%20Chang%20bracket%20repair.pdf
<http://www.markstivers.com/valytech/Young%20Chang%20bracket%20repair.pdfSco
tt JacksonMt Keira, NSW, Australia.> 

Scott Jackson
Mt Keira, NSW, Australia. 

 

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of piannaman at aol.com


Hi All,

I wonder if anyone could give me a serial number or year range for the
expanding brackets that were produced by Young Chang.

Thanks in advance!


Dave Stahl, RPT

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