Aeolian Hammond BA player organ with Hammond tone cabinet (1938)The is an, invented by and John M. Hanert and first manufactured in 1935. Various models were produced, which originally used to generate sound via, where component waveform ratios are mixed by sliding switches called and imitate the pipe organ's registers. Around 2 million Hammond organs have been manufactured, and it has been described as one of the most successful organs ever.
The organ is commonly used with, and associated with, the. Contents.Tonewheel organs Tonewheel organs generate sound by shaped mechanical wheels, that rotate in front of electromagnetic pickups. Each tonewheel assembly creates tones with low harmonic content, close to a sine wave.
Inside the coil is a permanent magnet. As the profile of the tonewheel pass by, the strength of the magnetism changes—when the highest part is closest to the tip of the magnet, the magnetism is strongest. As the magnetism varies, that induces an alternating current (AC) in the coil, which becomes one of the frequencies used in harmonic synthesis. ImageModel Name / NumberYears producedDescription. X-612-tone tonewheel generator with frequency divider and various additional featuresX-7A restyled H-100, designed to replace the B-3.
Had its own Leslie cabinet, the X-77LTwo models in Church-styled cabinet were made under military specifications, and named G (G for 'Government contract', withchorus), and G-2 (with vibrato), to be installed in chapels and officer's messes of U.S. Army and Navy.Vacuum tube musical instruments Vacuum tube musical instruments mean generating sound with -based. Hammond Organ Company commercialized it in the late-1930s as (1939–1942) and Solovox (1940–1948). Especially, new designs introduced on Novachord — and — were immediately followed by many manufacturers of and during the 1940s-1970s. However, Hammond Organ Company did not adopt these on main products until the late-1960s, except for S series (1950–1966) and 'Solo Pedal Unit' on RT series and D-100 (1949–1969).ImageModel Name / NumberYears producedDescription.
Solovox(model J,K,L)1940–1950Monophonic attachment keyboard instrument, intended to accompany the pianos with lead voice of organ and orchestral sound. It consists of two units — a 3-octave mini keyboard attaching under the piano keyboard, and a tone cabinet including electronic sound generator, amplifier and loudspeaker. The sound generator is based on a vacuum tube oscillator and octave divider circuits originally designed for Novachord.
There are three minor changed models:. Model J (1940–1946). Model K (1946–1948). Model L (1948–1950). Solo Pedal Uniton RT series and D-10Solo Pedal Unit (or Pedal Solo Unit) provides a monophonic bright bass sound on RT series and model D-100 consoles, layered with tradiotional polyphonic tonewheel pedal sound.
Although Solo Pedal Unit is and it can play only one note at a time, the players can play polyphonic bass lines by the help of traditional pedal sound. The sound generator is electrically similar to Solovox Model L. It consists of a vacuum tube oscillator and five frequency divider circuits, controlled by a volume and 8-stop tablets (Bourdon 32', Bombarde 32', 16', 8', 4', 2' & 1', mute, pedal solo on) placed on the right side of lower manual.
Although there are five revisions of units, these are interchangeable on all RT series consoles. S seriesChord Organ1950–1966First.
Its ' easy to play' style initiated a new leading to today's market. The S series Chord Organ can be played via following interfaces:. 37-note keyboard for solo or chords. 96-chord buttons (12-semitones × 8-chords variation) for chords. 2 wire touch-plates for strumming effect.
Chicago Cottage Organ Serial Numbers
2 bass pedals for root & 5th. 1 expression pedal (or knee lever) for total volume control. 3 volume knobs for volume of each part (solo, chord, bass)Transistor organs Hammond started to produce transistor organs when the production of tonewheels became too expensive, switching to full-time Integrated Circuit (IC) models in 1975. ImageModel Name / NumberYears producedDescription. Cougar1973–1976Transistor spinet organ with drawbars, in some extent, corresponded to a kind of successor of L-100 series tonewheel spinet organ, although its new drawbars arrangement is slightly exotic; its upper manual has normal nine drawbars; on the other hand, lower manual has only two 8' drawbars with sawtooth.
This anomalous design was only followed by a few models (8000 series, 8100 series, and 8200 Aurora series).Dolphin1973–1976Spinet organ with built-in and 20 one finger chords.J-10 (Late 1960s )Transistor spinet organ - no tonewheels., p. 168., p. 151., p. 319. Reid, Gordon (November 2003). Sound On Sound. Retrieved 25 April 2011.
^, p. 68. ^, p. 74., pp. 74-75. ^, p. 71., VintageHammond.com., OrganHouse.com. – Two manufacturer plates can be confirmed: one is ' ' by Hammond Instrument Co., and the other is ' ' by Aeolian-Skinner organ Co. ^, p. 69. ^ Spark, Rod (October 1997).
Retrieved 30 July 2013. ^, p. 49., p. 19., p. 76. ^, p. 72., p. 77., p. 79., p. 79-80., p. 81., p. 83., p. 85., p. 86., p. 78., p. ^,.,.
^, p. 89., p. 91., Retrieved 5 August 2013. ^, p. 85., p. 93., p. 96. Howell, Steve; Wilson, Dan. Retrieved 26 April 2011.
See also site's page. ^,.,. (PDF). Service Manual. Hammond Organ Company. ^,., ad, September 27, 1958.,., p. 176., pp. 58,63., p., p. 75. ^, — Serial number plates by Yamaha were printed as: ' Built by to Specifications of Hammond Organ Company, Chicago, ILL.
Made in Japan'. Also vivid color tablet buttons and ' rice paper finish' wood print panel seem to share the design language of Yamaha Electone at that time.
Wurlitzer Organ Serial Numbers
^, — Serial number plates (probably not by Yamaha) were simply printed as: ' Hammond International, Chicago, ILL. Made in Japan'., p. ^,.,.,. ^,., pp. –H-22., p., p., p.,. ^,.,.
^,.,.,.,.,.,. Welch, Jerry (2011). Organ Service Company, Inc. Retrieved 31 July 2013., p. 14.,. ^ Magnus, Nick (October 1998).
Archived from on 2016-03-03. Retrieved 2 August 2013., ' Bovenmanuaal met 61 toetsen - 9 drawbars / Ondermanuaal 61 toetsen - 9 drawbars / Pedaal 25 tonig - 2 drawbars'. Jacques, David (2001). Archived from on 2014-12-27. Retrieved 2 Feb 2014. Cite journal requires journal=. Hugh Robjohns.
Sound On Sound (July 2003). Archived from on 2006-11-06. Robjohns, Hugh (July 2005). Retrieved 31 July 2013. Hart, Terry (12 August 2011). Mixdown Magazine.
Archived from on 22 February 2014. Retrieved 2 August 2013.
Cite journal requires journal=. Fortner, Stephen (13 December 2011).
Keyboard Magazine. Retrieved 2 August 2013. Bibliography. Bush, Douglas Earl; Kassel, Richard (2006). Routledge Chapman & Hall. Corbin, Alfred (2006). AuthorHouse.
Faragher, Scott (2011). The Hammond Organ: An introduction to the instrument and the players who made it famous.
Hal Leonard Corporation. (2002). Hal Leonard Corporation.
Riley, Chris (2006). Xulon Press. Vail, Mark (2002). Backbeat Books. Waring, Dennis G (2002). Wesleyan University Press.Other sources. (in Dutch).
Hammond Toonwielorgelvereniging Netherland Hammond Oragn Club Holland (hammondclub.nl). Retrieved 2013-08-06. Service Manual. Hammond Organ Company.
(PDF). Winterpark, FL: Audio Playground Synthesizer Museum. Archived from (retyped PDF) on 2010-11-24. Retrieved 2013-08-07. (recreation of original in 1970); Originally published as: Introductory Section. Service Manual.
Melrose Park, Illinois: Hammond Organ Company. HO-495-1-2500. (PDF). Archived from (retyped PDF) on 2016-03-04. Retrieved 2013-08-07.Note: It seems a retyped copy of original 'Introductory Section' of Service Manual in circa 1975, or similar. (scanned image in PDF).
Retrieved 2013-08-07.Note: It seems a reprint of 'Introductory Section' of Service Manual circa 1984, or similar. Hammond Zone (hammond-organ.com).
Archived from on 2018-02-22. Retrieved 2013-08-06.Wikimedia Commons has media related to.