Gulbransen
Encyclopedia
Gulbransen Company was a home organ manufacturer that began operation in 1904, and had pioneered several innovations on home electronic organ that became industry standards, as following:
In 1957, Gulbransen released first transistor
ized electric organ "Gulbransen Model B" (Model 1100), although its transistorization was limited to the tone generators, and still vacuum tubes were used for the power amplifier.
(Later, first fully transistorized organ was built for church by Rodgers Instruments
)
Also in 1960s, Gulbransen released one of the earliest transistorized rhythm machine
s "Seeburg/Gulbransen Select-A-Rhythm", with the collaboration with Seeburg Corporation.
Note that Seeburg invented fully transistorized rhythm machine in 1964 (patented in 1967). — related patents filed at the same time were: , , and sound circuits of and .
In 1960s, Gulbranse was merged with Seeburg Corporation, and then absorbed to CBS.
Gulbransen is now a division of Mission Bay Investments producing Elka
organs with the Gulbransen name.
- transistor organ
- built-in Leslie speakerLeslie speakerThe Leslie speaker is a specially constructed amplifier/loudspeaker used to create special audio effects using the Doppler effect. Named after its inventor, Donald Leslie, it is particularly associated with the Hammond organ but is used with a variety of instruments as well as vocals. The...
system - chime stop and piano stop
- automatic rhythmDrum machineA drum machine is an electronic musical instrument designed to imitate the sound of drums or other percussion instruments. They are used in a variety of musical genres, not just purely electronic music...
- automatic walking bass
In 1957, Gulbransen released first transistor
Transistor
A transistor is a semiconductor device used to amplify and switch electronic signals and power. It is composed of a semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current...
ized electric organ "Gulbransen Model B" (Model 1100), although its transistorization was limited to the tone generators, and still vacuum tubes were used for the power amplifier.
(Later, first fully transistorized organ was built for church by Rodgers Instruments
Rodgers Instruments
Rodgers Instruments Corporation is an American manufacturer of classical and church organs. Rodgers was founded in 1958 by Rodgers W. Jenkins and Fred Tinker, employees of Tektronix, Inc., of Portland, Oregon, and members of a Tektronix team developing transistor-based oscillator circuits...
)
Also in 1960s, Gulbransen released one of the earliest transistorized rhythm machine
Drum machine
A drum machine is an electronic musical instrument designed to imitate the sound of drums or other percussion instruments. They are used in a variety of musical genres, not just purely electronic music...
s "Seeburg/Gulbransen Select-A-Rhythm", with the collaboration with Seeburg Corporation.
Note that Seeburg invented fully transistorized rhythm machine in 1964 (patented in 1967). — related patents filed at the same time were: , , and sound circuits of and .
In 1960s, Gulbranse was merged with Seeburg Corporation, and then absorbed to CBS.
Gulbransen is now a division of Mission Bay Investments producing Elka
Elka
ELKA or Elka may refer to one of the following:*An Italian Synthesizer manufacturer, now defunct. Notable units include; ELKA Synthex, ELKA Rhapsody, ELKA X-55, and the ELKA MKxx series of MIDI controllers . Notable customers include Jean Michel Jarre, Tangerine Dream, Klaus Schulze and, Supertramp...
organs with the Gulbransen name.