NL6606440A - - Google Patents

Info

Publication number
NL6606440A
NL6606440A NL6606440A NL6606440A NL6606440A NL 6606440 A NL6606440 A NL 6606440A NL 6606440 A NL6606440 A NL 6606440A NL 6606440 A NL6606440 A NL 6606440A NL 6606440 A NL6606440 A NL 6606440A
Authority
NL
Netherlands
Application number
NL6606440A
Other versions
NL148457B (nl
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 filed Critical
Publication of NL6606440A publication Critical patent/NL6606440A/xx
Publication of NL148457B publication Critical patent/NL148457B/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1295—Parallel-T filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/01—Varying the frequency of the oscillations by manual means
NL666606440A 1965-05-11 1966-05-11 Oscillator met een omschakelbaar kamfilter opgenomen in de terugkoppelketen voor een versterker. NL148457B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45489065A 1965-05-11 1965-05-11

Publications (2)

Publication Number Publication Date
NL6606440A true NL6606440A (xx) 1966-11-14
NL148457B NL148457B (nl) 1976-01-15

Family

ID=23806484

Family Applications (1)

Application Number Title Priority Date Filing Date
NL666606440A NL148457B (nl) 1965-05-11 1966-05-11 Oscillator met een omschakelbaar kamfilter opgenomen in de terugkoppelketen voor een versterker.

Country Status (7)

Country Link
US (1) US3457526A (xx)
BE (1) BE680678A (xx)
DE (1) DE1269677B (xx)
ES (1) ES326860A1 (xx)
GB (1) GB1071204A (xx)
NL (1) NL148457B (xx)
SE (1) SE345050B (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569863A (en) * 1968-12-13 1971-03-09 Northern Electric Co Twin-t oscillator
US3611194A (en) * 1969-12-29 1971-10-05 Stromberg Carlson Corp Tunable oscillator circuit employing an active rc notch filter circuit
GB2071452B (en) * 1980-02-11 1984-04-04 Decca Ltd Adjustable and selective electrical filters and methods oftuning them

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB524314A (en) * 1939-01-27 1940-08-02 Edmund Ramsay Wigan Improvements in and relating to thermionic valve oscillators and amplifiers
US2619534A (en) * 1948-10-25 1952-11-25 Payne Samuel Tuning circuit for resistor-capacitor oscillators
US3072868A (en) * 1960-02-10 1963-01-08 Int Research & Dev Co Ltd Twin t filter
US2996689A (en) * 1960-05-24 1961-08-15 Donald W F Janz Constant d.-c. resistance frequency variable t-t notch network
US3009121A (en) * 1961-05-12 1961-11-14 William V Loebenstein Adjustable frequency rejection filter
US3174111A (en) * 1961-07-05 1965-03-16 Texas Instruments Inc Twin-t filter with negative feedback
US3223941A (en) * 1963-11-05 1965-12-14 Bell Telephone Labor Inc Adjustable frequency bridge circuit

Also Published As

Publication number Publication date
ES326860A1 (es) 1967-03-16
US3457526A (en) 1969-07-22
BE680678A (xx) 1966-10-17
SE345050B (xx) 1972-05-08
GB1071204A (en) 1967-06-07
NL148457B (nl) 1976-01-15
DE1269677B (de) 1968-06-06

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Legal Events

Date Code Title Description
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: WESTERN ELECTRI

V4 Discontinued because of reaching the maximum lifetime of a patent