GB395596A - Improved circuit arrangement for generating or amplifying electric oscillations - Google Patents

Improved circuit arrangement for generating or amplifying electric oscillations

Info

Publication number
GB395596A
GB395596A GB36109/32A GB3610932A GB395596A GB 395596 A GB395596 A GB 395596A GB 36109/32 A GB36109/32 A GB 36109/32A GB 3610932 A GB3610932 A GB 3610932A GB 395596 A GB395596 A GB 395596A
Authority
GB
United Kingdom
Prior art keywords
valves
reaction
generating
grid
valve
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
GB36109/32A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB395596A publication Critical patent/GB395596A/en
Expired legal-status Critical Current

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
    • H03B5/22—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 active element in amplifier being vacuum tube

Landscapes

  • Fuel Cell (AREA)

Abstract

395,596. Converting. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 29, Emmasingel, Eindhoven, Holland. , Dec. 20, 1932, No. 36109. Convention date, Jan. 8. [Class 38 (ii).] Thermionic valves 1, 2, 3 in a generating or amplifying circuit have output circuits which include a combination of resistance 4, 6 and capacity 5, 7 or a combination of resistance and inductance (not shown), which brings about a phase displacement of 180‹ in the desired frequency, and reaction, which is strongly negative for the other frequencies, prevents amplification of those frequencies. As shown, three valves are used with reaction taken by a conductor 8 from the output of the last valve 3 to the input to the first valve 1. The reaction is regulated by a variable tapping 17 or by varying the grid bias of one or more valves. Screened-grid valves are used to neutralize the influence of anode-grid capacity. The condensers or the resistances are varied to regulate the frequency amplified. A single valve may be employed, Fig. 3 (not shown).
GB36109/32A 1932-01-08 1932-12-20 Improved circuit arrangement for generating or amplifying electric oscillations Expired GB395596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL395596X 1932-01-08

Publications (1)

Publication Number Publication Date
GB395596A true GB395596A (en) 1933-07-20

Family

ID=19785851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36109/32A Expired GB395596A (en) 1932-01-08 1932-12-20 Improved circuit arrangement for generating or amplifying electric oscillations

Country Status (2)

Country Link
FR (1) FR747890A (en)
GB (1) GB395596A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498759A (en) * 1947-03-24 1950-02-28 Rca Corp Wide band oscillator and modulator
US2633534A (en) * 1950-02-01 1953-03-31 Bell Telephone Labor Inc Variable frequency oscillator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE860226C (en) * 1934-12-09 1952-12-18 Siemens Ag Cascade amplifier with negative feedback

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498759A (en) * 1947-03-24 1950-02-28 Rca Corp Wide band oscillator and modulator
US2633534A (en) * 1950-02-01 1953-03-31 Bell Telephone Labor Inc Variable frequency oscillator

Also Published As

Publication number Publication date
FR747890A (en) 1933-06-24

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