GB357244A - Improvements in thermionic valve circuits for generating high frequency currents - Google Patents

Improvements in thermionic valve circuits for generating high frequency currents

Info

Publication number
GB357244A
GB357244A GB1885130A GB1885130A GB357244A GB 357244 A GB357244 A GB 357244A GB 1885130 A GB1885130 A GB 1885130A GB 1885130 A GB1885130 A GB 1885130A GB 357244 A GB357244 A GB 357244A
Authority
GB
United Kingdom
Prior art keywords
circuit
valve
grid electrode
grids
screening
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
GB1885130A
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.)
ALAN D ARCY HODGSON
GRAHAM AMPLION Ltd
Original Assignee
ALAN D ARCY HODGSON
GRAHAM AMPLION Ltd
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 ALAN D ARCY HODGSON, GRAHAM AMPLION Ltd filed Critical ALAN D ARCY HODGSON
Priority to GB1885130A priority Critical patent/GB357244A/en
Publication of GB357244A publication Critical patent/GB357244A/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

Abstract

357,244. Valve generating circuits. GRAHAM AMPLION, Ltd. and HODGSON, A. D., St. Andrew's Works, Slough, Buckinghamshire. June 20, 1930, No. 18851. [Class 40 (v).] An oscillation generator comprises a master oscillating circuit 19, 20 connected to one grid electrode of a valve and inductively coupled to a reaction coil 23 connected to a second grid electrode. The anode of the valve is connected to a tuned output circuit 24, 25 and screened from the electrodes of the master circuit to avoid electrostatic interference from the output circuit. The frequency may be further stabilized by means of a piezo-electric crystal and the screening may be improved by the incorporation of a neutralizing circuit. Modulation may be effected by connecting a microphone to either of the grids, or to the anode, or by means of a fourth grid electrode. The device may be used for multiplying frequency by arranging that the master circuit produces harmonics as by providing a high value of grid leak 22 and tuning the output circuit to the desired harmonic. Fig. 3 shows a push-pull oscillator in which a phasing system may be inserted between the screening grids or between the screening grids and earth in the case of a frequency multiplier.
GB1885130A 1930-06-20 1930-06-20 Improvements in thermionic valve circuits for generating high frequency currents Expired GB357244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1885130A GB357244A (en) 1930-06-20 1930-06-20 Improvements in thermionic valve circuits for generating high frequency currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1885130A GB357244A (en) 1930-06-20 1930-06-20 Improvements in thermionic valve circuits for generating high frequency currents

Publications (1)

Publication Number Publication Date
GB357244A true GB357244A (en) 1931-09-21

Family

ID=10119486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1885130A Expired GB357244A (en) 1930-06-20 1930-06-20 Improvements in thermionic valve circuits for generating high frequency currents

Country Status (1)

Country Link
GB (1) GB357244A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764387C (en) * 1932-07-24 1952-03-10 Telefunken Gmbh Circuit for regulating the gain of a pipe with six or more electrodes
US3524150A (en) * 1967-06-19 1970-08-11 Gen Electric Mass analyzer including a broad range modulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764387C (en) * 1932-07-24 1952-03-10 Telefunken Gmbh Circuit for regulating the gain of a pipe with six or more electrodes
US3524150A (en) * 1967-06-19 1970-08-11 Gen Electric Mass analyzer including a broad range modulator

Similar Documents

Publication Publication Date Title
GB531067A (en) Improvements in or relating to methods and apparatus for generating high frequency electro-magnetic waves
GB507454A (en) Improvements in frequency stabilisation arrangements for oscillation generators
GB357244A (en) Improvements in thermionic valve circuits for generating high frequency currents
GB633369A (en) Frequency generating systems
US2543067A (en) Oscillator converter
GB373632A (en) Improvements in or relating to thermionic oscillation generators
GB454059A (en) Improvements in or relating to electric discharge tube oscillation generators
US2066902A (en) Method of and means for producing oscillations
US2593349A (en) Beat frequency oscillator for receivers
GB380144A (en) Improvements in and relating to thermionic valves and circuits for the generation, modulation and controlling of electric oscillations
US2379325A (en) Frequency modulation
GB428581A (en) Improvements in or relating to electrical oscillation generators
US1622001A (en) Circuit arrangement for generating electrical oscillations
US1843415A (en) Crystal controlled calibrator or transmitter
GB410389A (en) Improvements in or relating to thermionic valve oscillation generators
GB212563A (en) Improved means for generating high frequency electric currents
GB586584A (en) Oscillation generator
US1874869A (en) Signaling by frequency modulation
GB580824A (en) Improvements in electric oscillation generators
US1969335A (en) Signaling system control
GB392436A (en) Improvements in and relating to electric oscillation generators
GB382316A (en) Improvements in thermionic generators
GB471337A (en) Improvements in thermionic valve relaxation oscillation generator circuits
GB499088A (en) Improvements in or relating to electrical oscillators
GB343566A (en) Improvements in or relating to means for generating electric oscillations