This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Thanks Don. I was thinking the aftertouch was bit much even though the = dip is where we like it and the blow is 1 3/4 inches. I would think = increasing the blow distance would be the way to go. A little more power = without sacrificing repetition. It should give me more room for checking = distance too. Keith Roberts ----- Original Message -----=20 From: Donald Mannino=20 To: Pianotech=20 Sent: Sunday, March 07, 2004 8:28 PM Subject: Re: Mason & Hamlin upright Keith, I worked on one of those years ago - my sister ended up buying it. This action (from Wessel, Nicklel and Gross, I believe, but I've only = seen it on Mason & Hamlin) repeats amazingly well. The only real = drawbacks are a little extra force in the key when the hammers are in = check, the possibility of bobbling hammers if the springs are set too = strong or the aftertouch is too great, and when they are working right a = very soft blow will push the hammers forward against the strings, = preventing 'ghosting' the notes. Once the action was regulated well I = never had a problem with bobbling, but a piano teacher noticed that when = he played the notes silently, the hammers would block the strings = spoiling a demonstration of harmonics he was trying to do for my niece. On the action I worked on the springs were very consistent, but the = felts were worn out. I replaced the felts with thin butt felts (if I = remember correctly!), matching the apparent thickness of the originals. = The amount of aftertouch in the action has a huge affect on the springs, = and I found minimal aftertouch was best. If the springs are unevenly = bent on the jacks, try to gently flex them to make a straight line when = viewed from the end of the action. I don't know exact measurements - as = I recall, the one I did had about 1/4" gap between the top of the spring = and the jack - but I haven't seen it in a long time, so I could be = remembering wrong. A very affective design, in my opinion. Don Mannino At 11:08 PM 3/6/2004, you wrote: I'm working on one of those M&H uprights with those flat brass = springs between the jack and the hammer butt catcher. Is there an = adjustment for those? Some of them may have been bent out of shape on = the reset when the bridle straps were off. Most of the hammers show a = wink at letoff but some don't making it tough to determine the exact = point of letoff. Also the hammers want to check at 3/8 inch. Would that = be the normal setting? Thanks Keith Roberts ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/0f/95/b6/20/attachment.htm ---------------------- multipart/alternative attachment--
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