BE487709A - - Google Patents

Info

Publication number
BE487709A
BE487709A BE487709DA BE487709A BE 487709 A BE487709 A BE 487709A BE 487709D A BE487709D A BE 487709DA BE 487709 A BE487709 A BE 487709A
Authority
BE
Belgium
Application number
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.)
Publication of BE487709A publication Critical patent/BE487709A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L13/00—Stencilling apparatus for office or other commercial use
    • B41L13/04—Stencilling apparatus for office or other commercial use with curved or rotary stencil carriers
    • B41L13/08—Stencilling apparatus for office or other commercial use with curved or rotary stencil carriers with stencil carried by two or more cylinders, e.g. through the intermediary of endless bands
    • B41L13/10—Clips or clamps for securing stencils to stencil carriers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
BE487709D 1948-04-23 BE487709A (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22854A US2517960A (en) 1948-04-23 1948-04-23 Self-biased solid amplifier

Publications (1)

Publication Number Publication Date
BE487709A true BE487709A (it)

Family

ID=21811779

Family Applications (1)

Application Number Title Priority Date Filing Date
BE487709D BE487709A (it) 1948-04-23

Country Status (6)

Country Link
US (1) US2517960A (it)
BE (1) BE487709A (it)
CH (1) CH275632A (it)
FR (1) FR982822A (it)
GB (1) GB694025A (it)
NL (2) NL89371C (it)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691750A (en) * 1948-08-14 1954-10-12 Bell Telephone Labor Inc Semiconductor amplifier
US2600500A (en) * 1948-09-24 1952-06-17 Bell Telephone Labor Inc Semiconductor signal translating device with controlled carrier transit times
NL143914C (it) * 1948-10-14
GB654909A (en) * 1948-10-27 1951-07-04 Standard Telephones Cables Ltd Improvements in or relating to electric delay devices employing semi-conductors
BE491203A (it) * 1948-11-06
US2585078A (en) * 1948-11-06 1952-02-12 Bell Telephone Labor Inc Negative resistance device utilizing semiconductor amplifier
US2609459A (en) * 1948-12-30 1952-09-02 Rca Corp High input impedance transistor amplifier
BE493074A (it) * 1949-01-04
US2595496A (en) * 1949-01-22 1952-05-06 Rca Corp Cascade-connected semiconductor amplifier
US2660624A (en) * 1949-02-24 1953-11-24 Rca Corp High input impedance semiconductor amplifier
US2662124A (en) * 1949-06-01 1953-12-08 Bell Telephone Labor Inc Transistor amplifier circuit
US2647958A (en) * 1949-10-25 1953-08-04 Bell Telephone Labor Inc Voltage and current bias of transistors
US2679594A (en) * 1950-02-28 1954-05-25 Westinghouse Electric Corp Wave generator
US2683809A (en) * 1950-02-28 1954-07-13 Westinghouse Electric Corp Pulse generator
US2831149A (en) * 1950-07-13 1958-04-15 Philips Corp Electrical device
US2589704A (en) * 1950-08-03 1952-03-18 Bell Telephone Labor Inc Semiconductor signal translating device
US2872570A (en) * 1950-08-03 1959-02-03 Ibm Electronic amplifier
US2872592A (en) * 1950-08-03 1959-02-03 Ibm Electronic amplifier
US2644859A (en) * 1950-08-05 1953-07-07 Rca Corp Stabilized semiconductor amplifier circuits
BE505739A (it) * 1950-09-12
US2663796A (en) * 1950-11-09 1953-12-22 Bell Telephone Labor Inc Low-input impedance transistor circuits
US2666817A (en) * 1950-11-09 1954-01-19 Bell Telephone Labor Inc Transistor amplifier and power supply therefor
US2729708A (en) * 1951-02-02 1956-01-03 Rca Corp Band-pass amplifier systems
US2662123A (en) * 1951-02-24 1953-12-08 Bell Telephone Labor Inc Electrical transmission system including bilateral transistor amplifier
US2691077A (en) * 1951-03-31 1954-10-05 Rca Corp Transistor power amplifier
US2739190A (en) * 1951-05-26 1956-03-20 Bell Telephone Labor Inc Transistor amplifiers and circuit arrangements therefor
NL91981C (it) * 1951-08-24
US2756285A (en) * 1951-08-24 1956-07-24 Bell Telephone Labor Inc Semiconductor signal translating devices
US2745010A (en) * 1951-09-12 1956-05-08 Bell Telephone Labor Inc Transistor oscillators
US2842669A (en) * 1951-09-17 1958-07-08 Bell Telephone Labor Inc Self-starting transistor oscillators
US2757243A (en) * 1951-09-17 1956-07-31 Bell Telephone Labor Inc Transistor circuits
BE519695A (it) * 1952-05-05
US2885494A (en) * 1952-09-26 1959-05-05 Bell Telephone Labor Inc Temperature compensated transistor amplifier
BE524024A (it) * 1952-11-07
NL182825B (nl) * 1952-11-15 Wirtgen Reinhard Inrichting voor het vernieuwen van bitumineuze wegdekken.
BE524278A (it) * 1952-11-15
BE526444A (it) * 1953-02-13
US2811590A (en) * 1953-03-02 1957-10-29 Motorola Inc Series-energized cascade transistor amplifier
NL110766C (it) * 1953-03-14
US2864903A (en) * 1953-05-05 1958-12-16 Philips Corp Transistor amplifier with gain control
US2762870A (en) * 1953-05-28 1956-09-11 Rca Corp Push-pull complementary type transistor amplifier
US2762874A (en) * 1953-06-19 1956-09-11 Rca Corp Semi-conductor signal amplifier circuits
US2762873A (en) * 1953-06-30 1956-09-11 Rca Corp Transistor bias circuit with stabilization
US2864002A (en) * 1953-09-16 1958-12-09 Bell Telephone Labor Inc Transistor detector
US2813934A (en) * 1953-12-28 1957-11-19 Barber Colman Co Transistor amplifier
US2842624A (en) * 1954-03-05 1958-07-08 Hallicrafters Co Transistor amplifier circuit
US3018444A (en) * 1954-04-29 1962-01-23 Franklin F Offner Transistor amplifier
US2791645A (en) * 1954-05-04 1957-05-07 Carlton E Bessey Transistor amplifier
US2850694A (en) * 1954-07-07 1958-09-02 Bell Telephone Labor Inc Current supply apparatus for load voltage regulation
US2861258A (en) * 1954-09-30 1958-11-18 Ibm Transistor amplifier circuit
US2956118A (en) * 1954-11-30 1960-10-11 Rca Corp Selective amplitude discriminatory circuit
US2915600A (en) * 1955-04-25 1959-12-01 Raytheon Co Transistor stabilization circuits
US2964646A (en) * 1957-03-07 1960-12-13 Rca Corp Dynamic bistable or control circuit
US2978615A (en) * 1957-05-01 1961-04-04 Hughes Aircraft Co Electric trigger circuits
US3108263A (en) * 1957-09-10 1963-10-22 Bendix Corp Error detecting and indicating system
US3051933A (en) * 1959-05-04 1962-08-28 Foxboro Co Electrically operated apparatus for remote measuring
US3177303A (en) * 1960-10-07 1965-04-06 Budelman Electronics Corp Voice frequency hybrid telephone repeater
US3165589A (en) * 1961-03-23 1965-01-12 Frank M Shoemaker Amplifiers and interconnection circuits
BE620745A (it) * 1961-07-28
US3457508A (en) * 1966-06-21 1969-07-22 Us Navy Transistor pulse repeater network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA272437A (en) * 1925-10-22 1927-07-19 Edgar Lilienfeld Julius Electric current control mechanism
US1900018A (en) * 1928-03-28 1933-03-07 Lilienfeld Julius Edgar Device for controlling electric current
US1877140A (en) * 1928-12-08 1932-09-13 Lilienfeld Julius Edgar Amplifier for electric currents
US1949383A (en) * 1930-02-13 1934-02-27 Ind Dev Corp Electronic device

Also Published As

Publication number Publication date
NL145843B (nl)
US2517960A (en) 1950-08-08
GB694025A (en) 1953-07-15
FR982822A (fr) 1951-06-15
NL89371C (it)
CH275632A (de) 1951-05-31

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