I'll look at that again. At the moment I have the transition 27 - 32 with 32 at 850mm and 27 at 975 (F33 is 935). A#2 (note 26) is at 896 and A0 is 1320. As I mentioned, I could move the bass bridge a bit more forward and gain maybe 15 or 20 mm of backscale length. Putting the transition up to note 32 definitely gets the bottom of the tenor bridge away from the bottom of the bass bridge. The overall tension on this piano is about 37000lbs and I've tried to keep it down there as it's an older O without the cross strut between the tenor and bass long struts (on the plate). Not sure if that's a factor but plate failure is something I don't care to think about. I've smoothed it out but kept the plain wire tensions in the mid 150s drifting only slightly higher at the upper end. David Love davidlovepianos at comcast.net www.davidlovepianos.com -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Ron Nossaman Sent: Sunday, March 09, 2008 8:37 PM To: Pianotech List Subject: Re: Bass Bridge Position > Looking at it again I could actually move it up fairly easily without any > plate grinding since there is a bit of room from where A0 crosses and the > end of the bridge. My scale experiments suggest that this scale looks a bit > better with 12 or 13 monochords in the bass instead of 10. I'd be curious > to know how many notes on your transition and what the speaking lengths at > the beginning and end were. > > David Love I left the monochords at ten, and ended up with an A-0 length of 1308mm, and transition lengths of 987 at B-2. and 932 at D-3. Four notes. It worked real pretty in the spreadsheet, and the bridge placement and lengths sound (so far) like I won't need any mass loading or even voicing to smooth the transition. It's very smooth right out of the box, and I don't even have the hammers squared up and strings mated to them yet. I seem to have come pretty close. Ron N
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