Skinner Console, Relay, Combination Action, and Later Retrofits

The electric action turns a key press into a completed circuit: Skinner explained the electro-pneumatic principle in 1917 as a key whose depression closes a contact, completing the circuit to a magnet, which in turn admits or exhausts wind to operate the pipe valve. That was his statement of the principle rather than the specification of any particular opus, and what the magnet does inside the windchest is the subject of Skinner Pitman and Offset Chests, Leather, and Failure Modes.

The patent record behind the console side of that circuit is older. A patent of 14 December 1897, US 595,660, claims an electric organ action using electromagnets with several independent windings on shared cores so that a key needs only one contact, a metal veneer of uniform thickness to standardize armature travel without hand adjustment, resistance circuits that cut power consumption once the armature has engaged, and a swing-door console brought down to about 330 pounds for a sixty-stop organ. Skinner’s own United States portfolio runs to at least ten patents granted between 1893 and 1916, covering swell pedal actions, electric and electro-pneumatic organ actions, stop control across manuals, reed pipe construction and automatic player mechanisms; a patent establishes a claimed design at its filing date, not that the design entered production or how it behaved in the field.

United States patent 807,510, filed by Ernest M. Skinner on 4 November 1902 and granted 19 December 1905, states its object as increasing the combination possibilities of stops belonging to different manuals without the use of couplers. The claimed means is pneumatic under electric control: pneumatic and duplex valves governed by electromagnets, with dual stop-chambers whose channels can be selectively vented, so that stops belonging to different manuals can be combined without a mechanical coupler. As with the 1897 patent, the document establishes a claimed design only; it does not show which instruments carried it.

Not every patent connected with the name belongs to the same party. Patents assigned to the Skinner Organ Company are distinct from those assigned to the Aeolian-Skinner Organ Company and were filed by different named inventors: the Skinner Organ Company holds US 1,740,155, ‘Organ-stop control’, granted to Francis B. Converse in 1929, and US 1,762,449, granted to Arthur H. Marks in 1930, while Aeolian-Skinner holds US 2,004,168 (Arthur H. Marks, 1935), US 2,035,806 (Maurice E. Hardy, 1936), US 2,173,216 (John T. Stiff, 1939), US 2,598,790 (1952), US 2,970,507 (Evelyn M. Bolton, 1961) and Canadian patent CA 693,698 (Lawrence Schoenstein, 1964).

None of the Aeolian-Skinner patents is a Skinner Organ Company patent, and the company patents were filed by other inventors rather than by Ernest M. Skinner; within his own portfolio, US 715,307 is indexed with the Aeolian Company as assignee and US 500,040 was half-assigned to George S. Hutchings, so not all of it was unencumbered property of any Skinner firm. The assignee strings in the patent index are inconsistent and the list is not a certified assignment search, so it may be incomplete; the corporate eras themselves are set out at Skinner and Aeolian-Skinner.

A remote combination action is combination machinery located away from the console keyslip, and John Bishop, writing in The Diapason, states that Skinner began making it around 1912 and names Saint Thomas Church in New York City as having one of the earliest. The same retrospective describes its mechanical and pneumatic components as able to activate multiple stop controls at once through ivory buttons; Bishop’s phrase for the machine, an electro-pneumatic mechanical binary computer, is his own later characterization rather than a period term.

What the combination action does to the stop controls is stated plainly in the Skinner Organ Company’s patent of 17 December 1929, US 1,740,155, granted to Francis B. Converse as assignor to the company: a single piston shifts a plurality of stop controls into the on position at once, so that the organist can set up combinations in advance. Bishop also observes that early remote combination actions of this family have their movements exposed, so that a technician can see in the matrix why a particular stop will not set on a particular piston; that is an observation about a class of machines, not a specification, and it describes what inspection can show rather than how to intervene.

A capture action stores each stop-and-piston combination in the state of a magnet. A practitioner account describes the capture style, which it credits the Skinner Organ Company with pioneering, as using for each stop-and-piston memory element a bistable relay-type magnet similar in construction to an ordinary stop-tab magnet but fitted with dual contacts, so that the magnet’s own bistable state records whether that stop is on or off for that piston. That description comes from a single unattributed forum account rather than from a Skinner Organ Company patent or factory document, so treat it as a description of the type rather than a confirmed record of who introduced it.

Setterboards belong to mid-twentieth-century American practice. Bishop’s May 2025 column in The Diapason places setterboard combination actions there with dated examples from other builders, a Holtkamp of 1956 and C. B. Fisk organs, sets the remote electro-pneumatic system described above around 1912, and places solid-state replacements in recent decades; it is a columnist’s cross-builder chronology, not a documented per-builder timeline.

Adjustability at the console did not wait for electronics. The Skinner Organ Company’s Opus 707 of 1928 at Grace Church, New York, had a programmable crescendo implemented as a physical plugboard: a drawer sliding out from under the bottom keyboard held one metal socket per stop and a harness of labeled wire plugs, and the organist wired sockets in a chosen sequence to set the order in which the crescendo pedal added stops. That is one named instrument in one practitioner’s account; it establishes that programmable crescendos predate solid-state systems, not how common such drawers were.

A superseded generation can survive in place. The American Theatre Organ Society’s restoration guidelines contemplate that original equipment such as setter boards may be left installed for historic purposes while carefully disconnected, and a disconnected setterboard left in place is physical evidence of an earlier system, not evidence that the earlier system is still in use.

Wicks Organ Company records that the original console of Aeolian-Skinner Opus 1083 had ebony drawknob stems with ivory drawknob faces, engraved ivory tags, ivory coupler tilt-tab faces and ivory pistons. The institutional record for the Skinner Organ Company’s Opus 769 of 1929 describes fully adjustable pistons that set, move and change stops at the press of a thumb.

A replica shows how far the look of a console can be separated from the age of its controls: the four-manual Skinner replica console installed in 2013 by Scott Smith Pipe Organs was reported with 21 general pistons, 8 divisional pistons per manual including divisional cancels and 6 pistons dedicated to the couplers, controlled by a Peterson ICS-4000; that is a single modern instrument reported in a trade journal, not a normal piston count for any class of organ.

Létourneau reported that Aeolian-Skinner Opus 1257 of 1955 had original silver wire and bronze plate key contacts and original pneumatic stopknob actions; in the restoration the contacts were renewed with new silver wire while the pneumatic stopknob actions were replaced with electro-repulsion solenoids. That is the pattern a retrofit produces inside one console: a contact system renewed in kind next to a stop action changed in principle, within the same case.

For the feel of the keys, Skinner specified in 1917 that his keys have the tracker touch, which he defined as four ounces initial and one and one half ounces; it is a builder’s published figure for his own instruments at that date, not an industry standard and not a description of any other firm’s keyboards.

Temperamental pistons and notes that come and go are among the reported condition categories. Before the restoration of Aeolian-Skinner Opus 1257, the console’s pistons were described as temperamental at best, and individual notes or entire stops had become unreliable or outright inoperative with increasing regularity. The Diapason reports that by the late 1980s the combination action of the Skinner Organ Company’s Opus 327, contracted in 1921 and dedicated in 1922, had become increasingly unreliable, while the leather had degraded to the point that many stops were completely dead or had so many dead notes as to be unusable, some having been silent for two or three decades.

A dead note and a piston that will not set can share a console and have separate causes; the leather side of that picture is explained at Skinner Pitman and Offset Chests, Leather, and Failure Modes, and these are named single-instrument reports, not a rate of failure.

Earlier work is itself a condition. Wicks reported that the Aeolian-Skinner Opus 1083 console presented not only playability problems attributed to age and continued use but also unsightly holes left by past alterations. Alteration can also mean a console that is not the builder’s at all: Aeolian-Skinner Opus 1208 received a new drawknob console by Austin Organs in 1967, tonal changes by Steven Empson between 1982 and 1987, and significant damage when the chancel ceiling collapsed in 1996, which is why a factory stoplist cannot describe an instrument’s present state. Reading which of those layers is original in a given console is the job of Documenting Skinner Originality When the Console or Mechanism Has Changed.

In three named project reports, relay, switching or wiring systems were replaced: Aeolian-Skinner Opus 1257, Aeolian-Skinner Opus 1083 and the Skinner Organ Company’s Opus 769. These examples document those projects only and do not establish that control systems are the components most often replaced across the population.

The Winthrop University project shows the shape of one such scope. A dated trade-press feature identifies the instrument as Aeolian-Skinner Opus 1257 of 1955, with 3,820 pipes, and describes Létourneau’s work as largely a mechanical restoration that left the instrument tonally unchanged, with console components replaced and rewiring within the chambers alongside releathering of the pneumatic actions, cleaning of the reeds, recovering of the wind reservoirs, wind pressures restored to the 1955 specifications and all 3,820 pipes regulated. The feature dates the work 2007 to 2009, while the builder’s own project list gives 2009 alone; neither dating is adjusted to fit the other, and the feature was co-authored by a member of the firm that performed the work.

Solid-state systems have their own dated record. Solid State Organ Systems documents an Aeolian-Skinner restoration at Holy Name Catholic Center in January 2019 using its MultiSystem II with 300 levels of memory, and at Longwood Gardens a Capture for MultiSystem II installed in January 2019 replacing a previous 2008 installation; the Longwood item is a dated observation that a 2008 capture installation was replaced after about eleven years, not a service-life estimate, and both are the supplier’s own descriptions of its installations.

Console rebuild services advertised by builders include fitting new stop tabs or drawknobs, replacing a large older mechanical combination action with a new one, adding combination memory levels, fitting new pistons and new keys, evaluating and retaining the existing keyboards and pedalboard where desirable, and installing new contacts on the expression and crescendo shoes. Those are the self-descriptions of two firms; they establish that the operations are on offer, not that any given console has had them. Wicks Organ Company, as of 1 September 2026, lists solid state switching, consoles and keyboards among its rebuild offerings and names Skinner among the builders whose instruments it services; that is a stated service list on an undated page, not evidence of capacity, lead time or price.

The shell and the controls behind it date separately. A trade-journal feature states that console shells were mass-produced during the 1940s through 1960s, to the point that a trained eye can tell an Aeolian-Skinner console from an Austin of the same period by shell and layout style, while more recent consoles are custom-built individually; the feature offers no checklist and speaks of a trained eye, and the shell says nothing about what has since been fitted behind it.

The American Theatre Organ Society, in guidelines adopted in 1992 for theatre organs that it describes as based on Organ Historical Society guidelines, classifies replacement of the stop actions, combination action or relay system as a major alteration rather than ordinary repair, and provides that where solid-state combination actions or relay systems are necessary to meet an installation’s requirements they must be designed and installed to equal the aesthetic appearance, feel and functionality of the original console controls. The same guidelines state that keyboards, stop controls and other console components should be kept in, or restored to, their original condition, and that careful thought should be given to retaining the original stopkey actuation system; they are guidance for restoration projects, not a rule binding every instrument or owner.

Heritage conservation guidance takes a stricter line for instruments of historic value. The 1998 New South Wales heritage guide discourages replacing original stop action at all, and where stopknobs have become unusable it calls for exact copies rather than knobs of a different style; a jamb of knobs in a uniform style is therefore not by itself proof of originality. The Organ Historical Society’s 2008 guidelines state a general principle that does not name combination actions specifically: treatments should whenever possible be additive rather than subtractive, adding to an incomplete component rather than replacing it entirely, and historical work that fails a current restorer’s standards still deserves retention as evidence of past makers’ knowledge; the guidelines describe reversibility as an idealized goal rather than an absolute requirement.

One documented instrument keeps both. At Woolsey Hall, Yale University, the 1928 remote-control combination action of Skinner Organ Company Opus 722 has been retained and remains usable and available for study as a historical model, while a solid-state combination action was piggy-backed onto the console rather than replacing it; the description of it as the last remaining example is the publication’s own.

Other documented projects took other paths. At St Peter’s Episcopal Church, Morristown, New Jersey, the parish states, as of 1 September 2026, that many physical elements of its 1930 console cannot be revived, that a new Dobson Pipe Organ Builders console will preserve the historic feel and pneumatic stop action of the original, and that the original 1930 console will be preserved and relocated for display with glass paneling revealing its pneumatic selector system, kept playable through a small blower; it is a fundraising page describing an in-progress project, not a completed outcome.

At Rockefeller Memorial Chapel, University of Chicago, the chancel console of what the chapel describes as its E. M. Skinner instrument was completely rebuilt using the original hand-carved case designed by the chapel’s architect, Bertram Goodhue, while both consoles and the entire electrical system employ current technology; the institutional page is undated, so that technology cannot be dated.

The restore-rather-than-replace position has also been argued. In December 1998 the Curtis Organ Restoration Society objected to a University of Pennsylvania plan to install an electronic console in Irvine Auditorium in place of restoring the original 1926 mechanical console, the university saying it agreed the original ought to be renovated but lacked the money, and Joseph Dzeda of the A. Thompson-Allen Company warning that electronic consoles depend on a technology which is not readily reproducible and are replaced wholesale the first time they encounter trouble; the report cannot say what was eventually done, and the positions are those of the named speakers.

Four treatments, then, each documented: retain and add alongside, replace the console and display the original, restore the original in preference to an electronic substitute, and permit solid-state substitution conditionally while classing it as a major alteration. Which of them fits a given instrument is part of the whole-instrument decision at Restoring or Rebuilding an Altered Skinner Organ.

The useful starting point is a written record of which generation answers each control: whether the pistons act through a remote electro-pneumatic matrix, a magnet-based capture action, a setterboard or a solid-state system; whether a superseded setterboard or relay remains in place, connected or not; which key contacts and stop actions have been renewed in kind and which changed in principle; and what earlier alterations left behind. That record is what a project scope is written against, and it keeps the two questions this page separates from collapsing into one: how old the console is, and how old the controls behind it are.