<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>David,</span></div><div><span>I have 1 question. You mentioned this was a Teflon L from the 70's.</span></div><div><span>From the pictures, I don't see the 1/2 round bearings under the keys. Did you remove them?</span></div><div><span>If so, how do you compensate for the key height difference?</span></div><div><span><br></span></div><div><span>Thank you very much.</span></div><div><span><br></span></div><div><span>Jerry Cohen, RPT</span></div><div><span>NJ Chapter</span></div><div><br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "><div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "><font size="2" face="Arial"><hr size="1"><b><span
style="font-weight:bold;">From:</span></b> David Love <davidlovepianos@comcast.net><br><b><span style="font-weight: bold;">To:</span></b> pianotech@ptg.org; ptg_touchweightne@egroups.ptg.org<br><b><span style="font-weight: bold;">Sent:</span></b> Sunday, June 26, 2011 10:43 PM<br><b><span style="font-weight: bold;">Subject:</span></b> [pianotech] Touchweight: Re: half punching & figuring FW<br></font><br>
Follow up for Barbara Richmond, somewhere near Peoria:<br><br>Tried uploading these to the new "higher logic" website but alas, no go<br>(still waiting for those Vulcan consultants to arrive apparently). So I'm<br>posting it here on the old list where it's much simpler and works.<br>@&#*#$(&%*$()$. I hope you see it here. I've copied the new website even<br>though I have no idea how it will come through there. <br><br>Anyway, this is a picture(s) of the veneer method of lowering the action<br>ratio without moving capstans. It works very well and drops the ratio by<br>about .6. I just did this on an 1970's Teflon Steinway L where I was<br>replacing the action. Switched to 17 mm knuckles but still had a 6.0 ratio<br>(hammer displacement method). Doing this dropped it nicely to about 5.4.<br>(6 mm dip moved the hammer 36 mm on the original (6.0) and 32.5 once the<br>veneer was in place (5.41).
<br><br>Thin veneer (it's probably .025" thick) is cut into strips about 1/8" wide<br>and glued in place behind (in this case since I'm lowering the ratio). In<br>this case I replaced the punchings with thinner ones which I prefer and<br>might be required in some cases. Much easier than moving the capstan and it<br>works quite well. Can also be done in place of changing the shank or<br>knuckle where a lower of the ratio is needed but you're not changing parts<br>or only changing hammers and don't want to alter the hammer weight<br>necessarily. Takes a few hours with all the regulation stuff. Perhaps you<br>are already familiar with the method. <br><br>David Love<br><a target="_blank" href="http://www.davidlovepianos.com">www.davidlovepianos.com</a> <br><br><br></div></div></blockquote></div></div></body></html>