William R. Monroe wrote:
However, I personally don't recommend them, at least not for S&S ...... When I was in NY last spring, I tried a little experiment with them, and they did not ACCURATELY replicate the pressure of the cheek blocks - and this really is essential in S&S.
If the key frame is bedded properly, they work great. If need to exert that much pressure with the key blocks, you can be sure the bedding is not right.
Al G
From: William Monroe
Sent: Thursday, August 13, 2009 4:37 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Key frame hold downs
Schaff has them (p56 No.3209), so does S&S. However, I personally don't recommend them, at least not for S&S (not sure when else you might use them). When I was in NY last spring, I tried a little experiment with them, and they did not ACCURATELY replicate the pressure of the cheek blocks - and this really is essential in S&S. YMMV, depending upon how firmly the downward clamping pressure of any given cheek blocks are adjusted. It may be that in some it works better than others, but I can say from experience that on the few I've tried, the regulation did change when the cheekblocks were installed and screwed down - which is now my default (again) for regulating S&S.
Tom,
Great tool to have. I got mine from APSCO many years ago. I can't think of who has them now, but I do remember seeing them somewhere. I'm sure one of the supply companies who has them will respond. In the meantime, I'll try to remember where I've seen them.
Al G
List,
I seem to remember seeing a spring type clamp for holding keyframes to the bed but can't seem to locate these in my supply catalogs.
Advice?
Thanks
Tom Driscoll
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