GB1067327A - Improvements in or relating to electric organs - Google Patents

Improvements in or relating to electric organs

Info

Publication number
GB1067327A
GB1067327A GB25750/64A GB2575064A GB1067327A GB 1067327 A GB1067327 A GB 1067327A GB 25750/64 A GB25750/64 A GB 25750/64A GB 2575064 A GB2575064 A GB 2575064A GB 1067327 A GB1067327 A GB 1067327A
Authority
GB
United Kingdom
Prior art keywords
volts
input terminals
switch
tone
gating circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB25750/64A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomas International Corp
Original Assignee
Thomas International Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomas International Corp filed Critical Thomas International Corp
Publication of GB1067327A publication Critical patent/GB1067327A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/18—Selecting circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

1,067,327. Electrophonic musical instruments. WARWICK ELECTRONICS Inc. June 22, 1964 [June 21, 1963], No. 25750/64. Heading G5J. An electric organ comprises a plurality of tone sources each being actuatable by a voltage which appears on the output terminal 23 of an associated gating circuit in consequence of each of the two input terminals 21, 22 thereof being brought within pre-determined voltage ranges by a function switch 17 and a key switch 14, respectively. As described, a function switch 17 changes the voltage upon its associated input terminals 21 from - 27 volts to - 2 volts, and a key switch 14 replaces an open-circuit upon its associated input terminals 22 by + 15 volts or + 22 volts, depending upon the position of switch 32, and the output from the selected gating circuit thereby allows its associated tone source to operate. The switches 14 are operated by keys 12 (Fig. 1, not shown), mounted upon a keyboard 13. The gating circuit, Fig. 3, comprises resistors 36, 37 and a diode 39, the output terminal being joined to one of the tone sources. Gating circuits with a diode replacing the resistor 36, or using a transistor are also described (Figs. 4 and 5, not shown). The tone sources may be connected to an amplifier feeding a loud-speaker.
GB25750/64A 1963-06-21 1964-06-22 Improvements in or relating to electric organs Expired GB1067327A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US289695A US3297812A (en) 1963-06-21 1963-06-21 Gated function switches in electric organ

Publications (1)

Publication Number Publication Date
GB1067327A true GB1067327A (en) 1967-05-03

Family

ID=23112681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25750/64A Expired GB1067327A (en) 1963-06-21 1964-06-22 Improvements in or relating to electric organs

Country Status (2)

Country Link
US (1) US3297812A (en)
GB (1) GB1067327A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440324A (en) * 1965-10-01 1969-04-22 Hammond Corp Electric organ and proportional keying system therefor
US3509263A (en) * 1966-07-07 1970-04-28 Warwick Electronics Inc Electronic musical instrument keying system including attack and decay control
US3519723A (en) * 1966-12-20 1970-07-07 James A Wiest Sustain tone device for electrical musical instrument
US3520984A (en) * 1967-05-18 1970-07-21 Wurlitzer Co Keyboard actuated rhythm accompaniment
US3614287A (en) * 1969-08-15 1971-10-19 Paul A Klann Multiplexing arrangement for electronic organs
US3610799A (en) * 1969-10-30 1971-10-05 North American Rockwell Multiplexing system for selection of notes and voices in an electronic musical instrument
US3969968A (en) * 1971-06-01 1976-07-20 Melville Clark, Jr. Musical instrument with means for scanning keys
US3999457A (en) * 1972-03-17 1976-12-28 Adolf Michel Key system for controlling the rate of attack in electronic musical instruments
US3955460A (en) * 1975-03-26 1976-05-11 C. G. Conn Ltd. Electronic musical instrument employing digital multiplexed signals

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB613812A (en) * 1945-03-07 1948-12-03 Compton John Organ Co Ltd Improvements in or relating to electrical musical instruments
GB622910A (en) * 1945-03-07 1949-05-10 Compton John Organ Co Ltd Improvements in or relating to electrical musical instruments
NL86409C (en) * 1949-10-26
US2662148A (en) * 1953-01-06 1953-12-08 George R Stibitz Ganged circuit element
US2986652A (en) * 1956-10-09 1961-05-30 Honeywell Regulator Co Electrical signal gating apparatus
US2964735A (en) * 1957-08-14 1960-12-13 Bell Telephone Labor Inc Electronic selector circuit
US3078375A (en) * 1958-02-20 1963-02-19 Westinghouse Electric Corp Transistor amplifier utilizing a reversebiased diode for blocking signal leakage
US3089091A (en) * 1959-04-07 1963-05-07 Martin Marietta Corp Sequential sampling system using commutating devices providing control signals for biasing and switching of transistors
US3058381A (en) * 1959-05-11 1962-10-16 Wurlitzer Co Transistor tone generating system using transistorized keying means
US3143712A (en) * 1959-06-04 1964-08-04 Richard H Peterson Electronic musical instrument including cascaded transistor oscillators
US3037413A (en) * 1960-05-02 1962-06-05 Markowitz Jerome Electronic organ with transient speech effects
US3150228A (en) * 1960-06-09 1964-09-22 Gibbs Mfg & Res Corp Electronic musical instrument
US3196201A (en) * 1961-04-26 1965-07-20 Conn Ltd C G Transistor keyer

Also Published As

Publication number Publication date
US3297812A (en) 1967-01-10

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