Baldwin SD-10

[Rob Kiddell]

>I just worked on an SD-10 and it had the
>Renner butterfly spring (w/ screw adj.) whippen.
>Have they discontinued using the Schwander type whippen?
>It played rather hard but I got it playing to the guy's liking.
>Seems to me, that the Schwander whip produced a better 'feel'.
>Any comments?
>Also, the serial # is 284570, When was that made?

>Jon Page

Jon,

	I'm a Baldwin dealer technician in Canada, and Baldwin has been
using Renner actions in their SD-10 and SF-10 pianos for some time,
since the early 80's, I think. Your serial number 284570 dates the
instrument to 1989. I agree that they are easier to fine regulate,
but if the screw adjustment doesn't change the rep spring tension you need
 to check some of the springs and re-bend them as needed.
Interesting note: Baldwin uses their own hammers on the Renner
actions, which I find very light. Consequently, look for lots 'o lead
to compensate in the keys, making for heavy inertia problems.

Hope this helps,

Rob Kiddell
R.P.T., P.T.G.
C.A.P.T. Student
Edmonton, Canada
http://www.planet.eon.net/~atonal/atonal.html