Opus 16

Hadwen Park Congregational Church, Worcester  Massachusetts

September 2005

15 Ranks - 23 Stops - Electro-Pneumatic, Electric & Pitman Windchests

Great Division 

8'      Diapason 
Chimney Flute
Salicional  (sw)

8'      Voix Celeste  (sw)
4'      Principal 
Harmonic Flute

2'      Fifteenth 
III     Mixture   
8'      Trompette  (sw)

Pedal Division 

16'     Lieblich Gedeckt
Stop't Diapason (sw) 
4'      Octave  (sw)
8'      Trumpet  (sw)
4'      Clarion (ext)


Swell Division

8'      Stop'd Diapason
8'      Salicional
8'      Voix Céleste
4'      Octave
4'      Flute 

22/3'  Nazard  (ext)
2'      Super Octave (ext)
8'      Trompette  (prep)



A new organ, utilizing some components and pipework from the church's 1938 Estey Organ.

The “Toys”

 Automatic Pedal Coupler       With Pedal stops selected, sounds the lowest note played on the Great Keyboard in the pedals!  Useful for organists who are not adept with pedals, or need to play certain passages with the hands…   The Transposer   Allows the organist to make a selection (hymn or anthem)  higher or lower in pitch to accommodate different singers.  Raises or lowers the pitch by 7 half-steps!   The console is prepared for the addition of a MIDI Processor, which allows the organ to interface with new electronics – synthesizers, electric pianos, computers for record/playback, etc.


 The console is fully solid-state, meaning that there are no relays that control organ performance, etc. Through the new keyboards (replaced during the reconstruction) the organist’s performance is translated into serial data that is then transmitted to the pipe windchests via a standard computer LAN cable (8 wires!)

 The organ was expanded from 434 pipes (seven ranks, or sets of pipes) to 910 pipes, (fifteen ranks, including the future addition of the Trumpet) with the addition of a rebuilt windchest and 488 pipes, (basically sweepings around our shop that were offered to the church for the cost of renovation…)  The Estey organ windchests were rebuilt, using a different technology than was in practice by the Estey company in 1938 – direct mechanical solenoids – rather than leather-pneumatic actions. The old  Estey system was rather involved to restore, and did little to offer flexibility, such as allowing stops to play in more than one keyboard, and allowing the Swell Flute and Principal to play at multiple pitches. Completed, we now have this ability.

 The result is that Hadwen Park Congregational Church has a “new organ” built from parts of several historic instruments from around the country (there are even some pipes from Germany !)  We at American Classic Organ Co. are proud of the results, and hope that the congregation will be blessed with the music that this instrument provides for many generations to come.


Soli Deo Gloria

American Classic Organ Company, Limited