GB878813A - Improvements in or relating to electronic valves of the pentode type - Google Patents

Improvements in or relating to electronic valves of the pentode type

Info

Publication number
GB878813A
GB878813A GB12220/59A GB1222059A GB878813A GB 878813 A GB878813 A GB 878813A GB 12220/59 A GB12220/59 A GB 12220/59A GB 1222059 A GB1222059 A GB 1222059A GB 878813 A GB878813 A GB 878813A
Authority
GB
United Kingdom
Prior art keywords
inductance
electrode
grid
feedback
april
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
GB12220/59A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB878813A publication Critical patent/GB878813A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

878,813. Valve frequency selective amplifying circuits. SIEMENS & HALSKE A.G. April 10, 1959 [April 10, 1958], No. 12220/59. Class 40(6) [Also in Group XL(a)] The damping thrown across the input terminals of a pentode-type valve due to negative feedback through the grid-to-cathode capacitance of the voltage developed across the inductance L k of the cathode lead is compensated by equal and opposite feedback from an auxiliary electrode H in the vicinity of the screen grid. The compensating feedback is derived from inductance L h in the lead to this electrode and the capacity between the electrode H and the grid, and may be varied by variation of the potential applied to the auxiliary electrode. A voltage-stabilizing series resistance Rh may be included in the circuit and the inductance L h may be included internally, within the valve.
GB12220/59A 1958-04-10 1959-04-10 Improvements in or relating to electronic valves of the pentode type Expired GB878813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE878813X 1958-04-10

Publications (1)

Publication Number Publication Date
GB878813A true GB878813A (en) 1961-10-04

Family

ID=6818708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12220/59A Expired GB878813A (en) 1958-04-10 1959-04-10 Improvements in or relating to electronic valves of the pentode type

Country Status (2)

Country Link
DE (1) DE1249359B (en)
GB (1) GB878813A (en)

Also Published As

Publication number Publication date
DE1249359B (en) 1967-09-07

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