|
Great
Open Diapason
Stop'd Diapason
Principal
Flute
Twelfth
Fifteenth
Sesquialtera
Cornet treble
Trumpet
|
8
8
4
4
22/3
2
IV
V
8 |
Swell
Open Diapason
Stop'd Diapason
Principal
Fifteenth
Cornet
Hautboy |
8
8
4
2
III
8 |
Pedal
Bourdon
Trombone
|
16
16 |
|
|
Couplers
Swell to Great Swell to Pedals Great to Pedals |
The manual compass
is C - g³, the pedal compass is C - f¹
The pitch is a¹=415Hz and the tuning system is Young's.
The Open starts
from D# in the front. The Stop'd Diapason is wood to f'#, and then
a metal chimney flute. the Swell Stop'd Diapason and the Great Flute
are both wood. The Sesquialtera has a double draw, so that it can
be used without the tierce rank. The composition of the Sesquialtera
is 17.19.22.26 at C, 15.17.19.22 at g#, 12.15.17.19. at g¹
and 8.12.15.17. at g². The Cornet has 17.19. at C and 12.17.
at g#. The scaling of the principals is the same for each rank:
3:5 with a 12" plate width at 51/3'G.
The winding
is provided by two 8 x 4 wedge bellows. The wind pressure is 63mm.
|