[pianotech] Square Grand jack springs & cords

[Ron Nossaman]

On 5/30/2012 10:51 AM, Joseph Garrett wrote:
> Ron N. said: "Actually, they need to be a specific *strength* and diameter.
> Gauge
> would depend on the material used."
>
> Ron,
> Let me put it another way: They need to be made of a specific diameter of
> brass spring wire. And, they need to be a specific diameter, (size), so
> that they fit into the routing under the rocker capstan! The "strength" is
> derived from these specifications, AND the specific length of the spring
> and cord.

Yea  Joe, I understand that. Diameter is specific, I know that. Spring 
rate is specific, I know that too. Material isn't necessarily sacred as 
long the above performance criteria can be met, in case the exact 
replacement material isn't possible. I know that three.
Ron N