Specification

Great Organ
Bourdon ¹
Open Diapason *
Clarionet Flute *
Dulciana *
Principal *
Harmonic Flute ¹
Twelfth
Fifteenth *
Mixture (15.19.22)
Trumpet
 
16
8
8
8
4
4
2 2/3
2
III
8
Swell Organ
Open Diapason
Stopped Diapason ³
Principal
Fifteenth
Oboe
 
Pedal Organ
Bourdon *
Principal (metal)
Bassoon ²
 
8
8
4
2
8
 
 
16
8
16

Swell to Great
Swell to Pedal
Great to Pedal

Three composition pedals to the Great Organ
Two composition pedals to the Swell Organ
Reversible "horse shoe" pedal for Great to Pedal coupler

Balanced Swell Pedal
Straight, concave pedal board.

Manual compass CC - g3 (56 notes)
Pedal compass CCC - f (30 notes)

The actions (key, pedal and stop) are mechanical and based on Walker practises in 1870. There is a balanced backfall action to the Great Organ, with double pallets in the bottom octave of the Great Organ and throughout the Pedal Organ. A 4:3 gearing reduction applies throughout.

Single double rise reservoir with concussion bellows to Great, Swell and Pedal soundboards. Wind is supplied from the 1948 Watson and Watkins blower.

Great Mixture composition:

  • 1-24: 15.19.22
  • 25-56: 8.12.15

Pipes marked * 1867 J.W.Walker Op. 877 (Pedal Bourdon bottom 12 notes only, rest new; top 12 notes of Great Clarionet flute new)
Pipes marked ¹ 1870 Walker Op. 1028 (top 20 notes of Great Bourdon new)
Pipes marked ² 1858 Willis (Swell Contra Fagotto from Surrey Chapel, Blackfriars Road, London)
Pipes marked ³ thought to be 1870(c.) Hill (bottom octave new)