Brown's lengths

[Eliot Lee]

Mother had a feeling, I might be too appealing.
- G. Lee.

-----Original Message-----
From: Ron Nossaman <nossaman@SOUTHWIND.NET>
To: pianotech@ptg.org <pianotech@ptg.org>
Date: Sunday, January 17, 1999 3:03 PM
Subject: Brown's lengths


>I read with some interest, the comments in this month's PTJ about Richard
>Brown's series of articles "Some Thoughts on the Design of Bass Strings". I
>was disappointed that the speaking lengths weren't given to round out the
>picture a little. Not having the real info, and being me, I decided to see
>how the back door approach worked. I plugged the diameters of the cores and
>wraps into a scaling program and juggled the lengths until the tensions and
>breaking percentages came into line with the published chart. Extremely
>spooky scale! Not recommended. This still doesn't tell us what the rest of
>the scale looked like, and I seriously doubt that it was a straight log
>progression, so it's not really good for much. Still, I think it's a good
>enough reconstruction to illustrate the problems inherent in this kind of
>approach to bass scaling.
>
>Try these lengths, in millimeters, and see what you get.
>
>1  1238
>2  1225
>3  1212
>4  1200
>5  1188
>6  1177
>7  1160
>8  1149
>9  1135
>10 1122
>11 1108
>12 1096
>13 1083
>14 1073
>15 1060
>16 1049
>17 1035
>18 1022
>19 1010
>20 999
>21 984
>22 972
>23 959
>24 948
>25 933
>26 920
>27 1065
>28 1050
>29 1032
>30 1016
>
>For what it's worth,
> Ron
>