The Brombaugh instrument in Fairchild Chapel is based on organ-building principles of the early 17th century. Although not a replica of any specific model, it was inspired by the work of German organ builders Gottfried Fritzsche and Friedrich Stellwagen.

Great CDE-c3 with sub-semitones, 56 notes

Praestant                       8
Gedackt                         8
Oak Principal                   8
Octava                          4
Spitzpype                       4
Quinta (Drawing the stop        3
        knob halfway brings on the Sesquialtera, which 
        speaks from middle C.  When the stop is fully drawn, 
        the Quinta speaks throughout the compass.)
Sesquialtera                   II
Octava                          2
Mixtura                     V-VII
Trommett                        8

Brust C/E-c3, 45 notes

Regal                           8
Hohlquinta (treble)             3

Pedal CDE-d1 with sub-semitones, 28 notes

Subbass                        16
Praestant (Gt)                  8
Trommett (Gt)                   8

Of Interest

Wind Pressure:                     78mm
Pitch:                             1c is tuned to 557 Hz
Case:                              fumed oak
Case doors and panels:             Western red cedar
Key cover plates for the naturals: cow bone
Manual sharps:                     ebony
Other case materials:              zebrawood, maple, bog oak, rosewood, sugar pine, 
                                   Douglas fir