Too big for your house?
Believe it or not, this mighty Hook & Hastings organ was built for a residence in Washington DC. It must have been rough on the neighbors, because this is a full-scale powerful instrument, more than ample for a very large building. The original slider chests are operated by electro-pneumatic actions.
Converted to electro-pneumatic by Lewis & Hitchcock, Inc., Opus 116, 1924.
The 1924 work was to convert the console from tubular-tracker to electro-pneumatic, and to add electro-pneumatic primary actions in place of the tubular primaries. The console already had a combination action, so primaries were added to fire that, and contacts on the pistons and toe studs. Then a set of EP switches was added in the base, for all the couplers and unit pedal stops. The console was also moved to the far end of the room, under the musicians gallery, and the base of the case was converted into bookshelves with doors, storage cabinets.
The manual and straight pedal windchests are all slider, with original pneumatics to move the sliders, and original pneumatics to pull the pallets; the only addition is an electro-magnet rail firing an electro-pneumatic primary action to dump the original pneumatics. The unit pedal chests are original, with magnet rails added.
(Note: The 32 Bourdon is on the left side, the 16 Diapason is on the right side, each on unit chests. The three straight pedal stops are on slider chests. There is a bass chest of 12 notes on the right side, and a treble chest of 18 notes on the left side. Screwed to the side of the Choir box on the left side is the treble extension pipes of the Bourdon and Bass Flute, some tubed over from the big chest, some on unit chests.)
There are treadles for all the combinations, plus Gt/Ped and SFZ, a total of 18.