GB398157A - Improvements in or relating to thermionic valve systems employing screen grid valves - Google Patents

Improvements in or relating to thermionic valve systems employing screen grid valves

Info

Publication number
GB398157A
GB398157A GB33570/31A GB3357031A GB398157A GB 398157 A GB398157 A GB 398157A GB 33570/31 A GB33570/31 A GB 33570/31A GB 3357031 A GB3357031 A GB 3357031A GB 398157 A GB398157 A GB 398157A
Authority
GB
United Kingdom
Prior art keywords
coil
circuit
relating
systems employing
screen grid
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
GB33570/31A
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.)
ANGELO FILIPPONI
ANONIMA NAZ DEL GRAMMOFONO SOC
Original Assignee
ANGELO FILIPPONI
ANONIMA NAZ DEL GRAMMOFONO SOC
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 ANGELO FILIPPONI, ANONIMA NAZ DEL GRAMMOFONO SOC filed Critical ANGELO FILIPPONI
Publication of GB398157A publication Critical patent/GB398157A/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

Landscapes

  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Fats And Perfumes (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

398,157. Valve amplifying and detecting circuits. FILIPPONI, A. and SOC. ANON. NAZIONALE DEL GRAMMOFONO, 14, Via Domenichino, Milan, Italy. Dec. 3, 1931, No. 33570. Convention date, Jan. 14. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] The screen-grid circuit of a valve amplifier includes a coil Ls which may be back-coupled to the input circuit L for giving reaction or selfoscillation, or alternatively may be used as a coupling coil fed by a separate local oscillator for frequency-changing or heterodyne wireless receivers. The screen-grid voltage may be applied through the coil Ls, or as shown in the Figure, a choke coil J may be connected in the supply circuit, and the circuit of the coil Ls may include a variable condenser C for regulating reaction.
GB33570/31A 1931-01-14 1931-12-03 Improvements in or relating to thermionic valve systems employing screen grid valves Expired GB398157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT398157X 1931-01-14

Publications (1)

Publication Number Publication Date
GB398157A true GB398157A (en) 1933-09-07

Family

ID=11246266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33570/31A Expired GB398157A (en) 1931-01-14 1931-12-03 Improvements in or relating to thermionic valve systems employing screen grid valves

Country Status (1)

Country Link
GB (1) GB398157A (en)

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