Northminster Presbyterian Church - Opus 51 (The Roy A. Johnson Memorial Organ)
The pipe organ for Northminster Presbyterian Church, is a three manual instrument of 46 ranks based on an eclectic design. The tonal design is a synthesis, resulting in a concept that is distinctly American.
The tonal specification was designed in consultation with John Brobeck, organist, and Stardust Johnson, director of music. The instrument features Blackinton-Johnson style electro-pneumatic slider windchests and electro-pneumatic unit windchests for extended ranks.
The Northminster organ contains 2,709 pipes, of which 653 were retained from the previous instrument and revoiced for the new tonal specification. The pipes range in size from over 16 feet in length to those smaller than a pencil. The metal pipes are constructed of various alloys of tin and lead for those shorter than 4' in length and a zinc alloy for pipes longer than 4' in length. Several ranks are constructed entirely of wood including pipes 1-12 of the 16' Contrabass which are mitered to fit the balcony ceiling height.
The visible casework is constructed of poplar painted white and contains polished zinc pipes with the mouths painted gold. Pipes 1-12 of the great 8' Principal are located in the organ case. The wood pipes in the left balcony transept are those of the pedal 16' Bourdon.
The console for this installation was built with drawknobs, coupler rail, toe studs, kick paddles, pedal board, manual key cheeks, and marker plates in the Aeolian Skinner style in memory of Roy Johnson, who admired the elegance and feel of their consoles. The key and stop functions are controlled by a solid state multiplex relay system. The combination action has 99 levels of memory and features a programmable crescendo and sforzando.
The tonal specification was designed in consultation with John Brobeck, organist, and Stardust Johnson, director of music. The instrument features Blackinton-Johnson style electro-pneumatic slider windchests and electro-pneumatic unit windchests for extended ranks.
The Northminster organ contains 2,709 pipes, of which 653 were retained from the previous instrument and revoiced for the new tonal specification. The pipes range in size from over 16 feet in length to those smaller than a pencil. The metal pipes are constructed of various alloys of tin and lead for those shorter than 4' in length and a zinc alloy for pipes longer than 4' in length. Several ranks are constructed entirely of wood including pipes 1-12 of the 16' Contrabass which are mitered to fit the balcony ceiling height.
The visible casework is constructed of poplar painted white and contains polished zinc pipes with the mouths painted gold. Pipes 1-12 of the great 8' Principal are located in the organ case. The wood pipes in the left balcony transept are those of the pedal 16' Bourdon.
The console for this installation was built with drawknobs, coupler rail, toe studs, kick paddles, pedal board, manual key cheeks, and marker plates in the Aeolian Skinner style in memory of Roy Johnson, who admired the elegance and feel of their consoles. The key and stop functions are controlled by a solid state multiplex relay system. The combination action has 99 levels of memory and features a programmable crescendo and sforzando.
Organ Specification
GREAT ORGAN
| Name | Pitch | Description |
|---|---|---|
| Sub Principal | 16' | Rank prepared for |
| Bourdon | 16' | |
| Principal | 8' | |
| Harmonic Flute | 8' | Rank prepared for |
| Chimney Flute | 8' | |
| Gemshorn | 8' | |
| Octave | 4' | |
| Nachthorn | 4' | |
| Nazard | 2 2/3' | |
| Super Octave | 2' | |
| Blockflute | 2' | |
| Tierce | 1 3/5' | |
| Mixture IV | ||
| Contra Hautbois | 16' | from Swell |
| Trumpet | 8' | |
| Flute Tremolo |
SWELL ORGAN enclosed
| Name | Pitch | Description |
|---|---|---|
| Geigen Principal | 8' | Rank prepared for |
| Viola | 8' | |
| Viola Celeste GG | 8' | |
| Bourdon | 8' | |
| Octave | 4' | |
| Harmonic Flute | 4' | |
| Rohr Nazard | 2 2/3' | Rank prepared for |
| Flageolet | 2' | |
| Mixture IV | ||
| Contra Hautbois | 16' | ext |
| Trompette | 8' | |
| Hautbois | 8' | |
| Vox Humana | 8' | Rank prepared for |
| Clarion | 4' | Rank prepared for |
| Tremolo |
CHOIR ORGAN enclosed
| Name | Pitch | Description |
|---|---|---|
| Salicional | 8' | Rank prepared for |
| Voix Celeste | 8' | Rank prepared for |
| Gedeckt | 8' | |
| Flauto Dolce | 8' | |
| Flauto Celeste TC | 8' | |
| Principal | 4' | |
| Koppelflute | 4' | |
| Octave | 2' | |
| Quinte | 1 1/3' | |
| Mixture III | ||
| Cromorne | 8' | |
| Rohr Schalmei | 4' | |
| Tremolo | ||
| Trumpet | 8' | from Great |
| Hautbois | 8' | from Swell |
PEDAL ORGAN
| Name | Pitch | Description |
|---|---|---|
| Contra Bourdon | 32' | Res |
| Principal | 16' | |
| Violone | 16' | Rank prepared for |
| Bourdon | 16' | |
| Gedeckt | 16' | from Swell |
| Gedeckt | 8' | ext |
| Bourdon | 8' | ext |
| Gedeckt | 8' | from Swell |
| Octave | 4' | ext |
| Flute | 4' | ext |
| Mixture IV | ||
| Contra Posaune | 32' | Rank prepared for |
| Posaune | 16' | from Great, ext |
| Contra Hautbois | 16' | from Swell |
| Trumpet | 8' | from Great |
| Clarion | 4' | from Great |
COUPLERS
| Name | Pitch |
|---|---|
| Swell to Great | 16'-8'-4' |
| Choir to Great | 16'-8'-4' |
| Swell to Choir | 16'-8'-4' |
| Great to Pedal | 8' |
| Swell to Pedal | 8'-4' |
| Choir to Pedal | 8'-4' |
KEY ACTION
| Name |
|---|
| Blackinton-Johnson electro-pneumatic slider windchest with electric stop action controlled by Heuss motor |
| Johnson design electro-pneumatic unit pouch windchests for extended manual ranks and pedal ranks |
| Peterson Multi-plex relay to controll all key and stop functions |
COMBINATION ACTION
| Name |
|---|
| Peterson Multi-level MSP 1000 capture combination action 99 levels of memory, programmable crescendo function |
| Generals 8 pistons, 8 additional by toe stud |
| Great and Choir, 6 pistons each |
| Swell, 8 pistons |
| General Cancel |
| Set Piston |
| Tutti |
SPECIAL FUNCTIONS
| Name |
|---|
| Great to Pedal, Swell to Pedal, Choir to Pedal, Reversible piston and paddle |
| Swell to Great, Reversible thumb piston and paddle |
| Manual Transfer Piston, Great and Choir manuals reverse |
| Choir Nave Shades Off |
| Swell Nave Shades Off |
