GB935559A - Improvements in or relating to sum and difference signal producers - Google Patents

Improvements in or relating to sum and difference signal producers

Info

Publication number
GB935559A
GB935559A GB43396/60A GB4339660A GB935559A GB 935559 A GB935559 A GB 935559A GB 43396/60 A GB43396/60 A GB 43396/60A GB 4339660 A GB4339660 A GB 4339660A GB 935559 A GB935559 A GB 935559A
Authority
GB
United Kingdom
Prior art keywords
cathode
signal
voltage
amplifier
followers
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
GB43396/60A
Other languages
English (en)
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB935559A publication Critical patent/GB935559A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/14—Arrangements for performing computing operations, e.g. operational amplifiers for addition or subtraction 
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
GB43396/60A 1959-12-21 1960-12-16 Improvements in or relating to sum and difference signal producers Expired GB935559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL246661 1959-12-21

Publications (1)

Publication Number Publication Date
GB935559A true GB935559A (en) 1963-08-28

Family

ID=19752097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43396/60A Expired GB935559A (en) 1959-12-21 1960-12-16 Improvements in or relating to sum and difference signal producers

Country Status (4)

Country Link
US (1) US3123779A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1115768B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB935559A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2) NL246661A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1148270B (de) * 1962-07-18 1963-05-09 Telefunken Patent Schaltungsanordnung zur Summen- und Differenzbildung zweier Niederfrequenz-signale fuer stereophonische UEbertragungen
US3259758A (en) * 1963-09-13 1966-07-05 Itek Corp Sum and difference circuit
US3688129A (en) * 1969-08-26 1972-08-29 Sony Corp Signal control circuit
US3952259A (en) * 1975-04-28 1976-04-20 Rockwell International Corporation Gain control apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432826A (en) * 1945-08-01 1947-12-16 F W Sickles Company Differential vacuum tube voltmeter
US2727682A (en) * 1949-11-30 1955-12-20 Sun Oil Co Analog computer or analyzer
US2705265A (en) * 1951-06-07 1955-03-29 Cecil T Hall Parallel opposed power amplifiers
US2903524A (en) * 1956-01-31 1959-09-08 Ca Atomic Energy Ltd D-c amplifier

Also Published As

Publication number Publication date
NL102035C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US3123779A (en) 1964-03-03
NL246661A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE1115768B (de) 1961-10-26

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