Quimby Pipe Organs, Inc.

producing organs that do the job with style

Northminster Presbyterian Church - Opus 51 (The Roy A. Johnson Memorial Organ)

Tucson, Arizona
3 manuals, 46 ranks; Year complete: 1999

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.

Organ Specification


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    
Zimbelstern   8 Bells


SWELL ORGAN enclosed
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


CHOIR ORGAN enclosed
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'  
Trumpet 8' from Great
Hautbois 8' from Swell


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


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'


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


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


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


Quimby Pipe Organs Inc.
P O Box 434
Warrensburg, Missouri 64093

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