GB519058A - Arrangement for producing biassing potentials in circuits incorporating electron discharge valves - Google Patents

Arrangement for producing biassing potentials in circuits incorporating electron discharge valves

Info

Publication number
GB519058A
GB519058A GB26330/39A GB2633039A GB519058A GB 519058 A GB519058 A GB 519058A GB 26330/39 A GB26330/39 A GB 26330/39A GB 2633039 A GB2633039 A GB 2633039A GB 519058 A GB519058 A GB 519058A
Authority
GB
United Kingdom
Prior art keywords
valve
bias
oscillator
voltage
high frequency
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
GB26330/39A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB519058A publication Critical patent/GB519058A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0064—Earth or grounding circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
    • H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
    • H03C1/22—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to same grid
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
    • H03D7/08—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between the same two electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0153—Electrical filters; Controlling thereof
    • H03H7/0161—Bandpass filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits
    • H04B1/1623—Supply circuits using tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1638—Special circuits to enhance selectivity of receivers not otherwise provided for
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Rectifiers (AREA)

Abstract

519,058. Thermionic valve circuits. KRAMOLIN, L. L. DE. June 7, 1938, No. 26330/39. Divided out of 513,626, under which a Specification was laid open to inspection under Sect. 91 of the Acts, June 23, 1938. [Class 40 (v)] Grid bias potential is derived by means which involve substantially no additional expenditure of current or voltage from the high tension source. Part of the output of a high frequency generator, e.g., the local oscillator of a superheterodyne receiver, may be rectified and used as bias, means being provided to prevent fluctuations of voltage with variation of the oscillator voltage. The Figure shows an arrangement in which a positive bias is applied to the grid 6 of the valve H through decoupling means O and a potentiometer P which may be varied automatically or by manual means to vary the amplifier gain or feedback and so the band width passed. The output of the oscillator valve B is limited by biassed diode D and the tuning is controlled by the diode R and the valve U as described in Specification 513,626. When the source of grid bias is an oscillator the bias may be maintained constant by a current or voltage limiting device which may be a biassed rectifier. The rectifier for the high frequency oscillation may be a diode contained in the oscillator valve envelope. The bias voltage may be fed through decoupling means and be used to charge secondary elements which may assist in the decoupling and comprise electrolytic condensers. The desired potential may be obtained by transformation of the high frequency oscillations. U.S.A. Specification 2,048,758 is referred to. The Specification as open to inspection under Sect. 91 describes also the valve and tuning coil construction and remote tuning and volume control arrangements described in Specification 513,626. This subject-matter does not appear in the Specification as accepted.
GB26330/39A 1937-01-30 1938-06-07 Arrangement for producing biassing potentials in circuits incorporating electron discharge valves Expired GB519058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE513626X 1937-01-30

Publications (1)

Publication Number Publication Date
GB519058A true GB519058A (en) 1940-03-14

Family

ID=6548461

Family Applications (2)

Application Number Title Priority Date Filing Date
GB35379/37A Expired GB513626A (en) 1937-01-30 1937-12-21 Arrangement for increasing the selectivity of electric amplifying apparatus
GB26330/39A Expired GB519058A (en) 1937-01-30 1938-06-07 Arrangement for producing biassing potentials in circuits incorporating electron discharge valves

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB35379/37A Expired GB513626A (en) 1937-01-30 1937-12-21 Arrangement for increasing the selectivity of electric amplifying apparatus

Country Status (1)

Country Link
GB (2) GB513626A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938081A (en) * 1952-12-27 1960-05-24 Gen Electric Selective transmission system for telephonic ringing
BE638197A (en) * 1963-10-03 1964-04-03 Acec Intrinsically Safe Logic Circuits
FR2699345B1 (en) * 1992-12-11 1995-03-10 Thomson Csf Semiconducteurs Output stage of an electrical circuit.

Also Published As

Publication number Publication date
GB513626A (en) 1939-10-18

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