GB526377A - Improvements in or relating to electrical oscillation generators - Google Patents

Improvements in or relating to electrical oscillation generators

Info

Publication number
GB526377A
GB526377A GB8206/39A GB820639A GB526377A GB 526377 A GB526377 A GB 526377A GB 8206/39 A GB8206/39 A GB 8206/39A GB 820639 A GB820639 A GB 820639A GB 526377 A GB526377 A GB 526377A
Authority
GB
United Kingdom
Prior art keywords
anode
stage
march
stabilized
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
GB8206/39A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB526377A publication Critical patent/GB526377A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/12—Electrically-operated arrangements for indicating correct tuning
    • 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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)

Abstract

526,377. Valve generating circuits. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE. March 14, 1939, No. 8206. Convention date, March 14, 1938. [Class 40 (v)] In a valve generator in which a positivelybiased grid G2 acts as an oscillator anode, the main anode P is connected to the source of positive potential over a resistance W1 such that the D.C. potential on this anode is so much less than the possible A.C. voltage that a rectangular wave-form rich in harmonics is produced. The invention is particularly applicable for use in calibrating the first stage of a superheterodyne receiver having two frequency-changing stages, the second stage being stabilized in frequency. For this purpose, the fundamental oscillation stabilized by crystal Q is taken from grid G2 over circuit K to the second stage and a high harmonic from the anode P is selected by a filter C3, W2 and applied'over lead E to the receiver input.
GB8206/39A 1938-03-14 1939-03-14 Improvements in or relating to electrical oscillation generators Expired GB526377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE526377X 1938-03-14

Publications (1)

Publication Number Publication Date
GB526377A true GB526377A (en) 1940-09-17

Family

ID=6552962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8206/39A Expired GB526377A (en) 1938-03-14 1939-03-14 Improvements in or relating to electrical oscillation generators

Country Status (1)

Country Link
GB (1) GB526377A (en)

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