Yes, it was me. (I've been off in a land were not all of the internet features work most of the time when this first came up or I'd have commented on it then. I can read the things that come in to pianotech but can't reply to them.) It was my first lesson in figuring out just how dampers work. And it led to a brief study of "auxiliary mass absorbers" generally. Once you understand how these things work you understand why so many of the modern ultra-lightweight systems simply don't work no matter how much spring pressure manufacturers unwisely (ignorantly?) put on them. ddf Delwin D Fandrich Piano Design & Fabrication 6939 Foothill Court SW, Olympia, Washington 98512 USA Phone 360.515.0119 - Cell 360.388.6525 del at fandrichpiano.com <mailto:del at fandrichpiano.com> - ddfandrich at gmail.com From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Susan Kline Sent: Saturday, December 22, 2012 10:03 AM To: pianotech at ptg.org Subject: Re: [pianotech] Chickering damper blocks Hi, Ron Obviously you didn't hear Del talking about the need for both spring tension and mass to get good damping. The metal gives the mass, as he found out when he replaced a set of those metal damper heads with wood. Even though my life has become a series of Senior Moments, I'm 98.5% sure it was Del who said this. Regards, Susan Ron Nossaman wrote: On 12/22/2012 12:45 AM, Joseph Garrett wrote: Wim said "I have seen them once in a while. Another one of Chickering's many experiments in making pianos" Wim, And what do you suppose was the reason for them? quiz for the day?<G> Joe Chickering did a long running set of experiments on the effects of psychotropics on piano design. Different substances produced different designs, and he eventually tried every combination of everything available. These dampers, I believe were the result of the chlorpromazine/dark chocolate experiment. Ron N -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20121222/51e82005/attachment.htm>
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