D R A W I N G S

made by Grant O'Brien

 

Stringing the 'French' Ruckers aligned double-manual harpsichord

 

French string gauge sizes

 

        I have, in the past, done a great deal of work on the determination of the correct diameter equivalents for the French string gauge sizes.  This work points to the following gauge diameter equivalents for the French wire string gauge system:

 

Gauge

Diameter

Diameter

in mm

Diameter

in inches

10

0.187mm

0.0074"

9

0.210mm

0.0083"

8

0.237mm

0.0093"

7

0.266mm

0.0105"

6

0.299mm

0.0118"

5

0.337mm

0.0133"

4

0.378mm

0.0149"

3

0.426mm

0.0168"

2

0.479mm

0.0188"

1

0.538mm

0.0212"

0

0.605mm

0.0238"

00

0.680mm

0.0268"

 

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