GB302589A - Circuit arrangements for the generation of simple harmonic oscillations - Google Patents

Circuit arrangements for the generation of simple harmonic oscillations

Info

Publication number
GB302589A
GB302589A GB37150/28A GB3715028A GB302589A GB 302589 A GB302589 A GB 302589A GB 37150/28 A GB37150/28 A GB 37150/28A GB 3715028 A GB3715028 A GB 3715028A GB 302589 A GB302589 A GB 302589A
Authority
GB
United Kingdom
Prior art keywords
filter
reaction
input
valve
generation
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
GB37150/28A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB302589A publication Critical patent/GB302589A/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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/36—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
    • B23B5/38—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes for turning conical surfaces inside or outside, e.g. taper pins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ac-Ac Conversion (AREA)
  • Amplifiers (AREA)

Abstract

302,589. Telefonaktiebolaget L. M. Ericsson. Dec. 17, 1927, [Convention date]. Thermionic generators; filter circuits.-In a thermionic generator, harmonics are eliminated by arranging the frequency-determining circuit L C1 C<1>2, C<11>2 as a filter through which both the output and the oscillations utilized for reaction are passed, the capacity of the input condenser C1 being greater than the output capacity C<1>2 C<11>2. The Figure shows a generating- valve 6 transformer-coupled to the filter input 1,. the voltage across condenser C<11>2 being utilized for reaction and the total output voltage being applied to an amplifier 8. In a modification (Fig. 2, not shown) the generating-valve isdirectly coupled to the filter input, the anode being fed through a choke. By varying the ratio of the capacities C1, C<1>2 C<11>2, the desired voltage for reaction may be secured and the input impedance may be adjusted to suit the valve used as a generator,
GB37150/28A 1927-12-17 1928-12-15 Circuit arrangements for the generation of simple harmonic oscillations Expired GB302589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE302589X 1927-12-17

Publications (1)

Publication Number Publication Date
GB302589A true GB302589A (en) 1929-12-19

Family

ID=20307464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37150/28A Expired GB302589A (en) 1927-12-17 1928-12-15 Circuit arrangements for the generation of simple harmonic oscillations

Country Status (4)

Country Link
BE (1) BE336646A (en)
DE (1) DE527776C (en)
FR (1) FR665878A (en)
GB (1) GB302589A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964544C (en) * 1948-10-02 1957-05-23 Nordwestdeutscher Rundfunk Ans Tubular alternator

Also Published As

Publication number Publication date
FR665878A (en) 1929-09-24
BE336646A (en)
DE527776C (en) 1931-06-22

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