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GB842132A - Improvements in or relating to electric amplifier arrangements - Google Patents

Improvements in or relating to electric amplifier arrangements

Info

Publication number
GB842132A
GB842132A GB3687357A GB3687357A GB842132A GB 842132 A GB842132 A GB 842132A GB 3687357 A GB3687357 A GB 3687357A GB 3687357 A GB3687357 A GB 3687357A GB 842132 A GB842132 A GB 842132A
Authority
GB
United Kingdom
Prior art keywords
anode
grid
valve
nov
bandwidth
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
GB3687357A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3687357A priority Critical patent/GB842132A/en
Publication of GB842132A publication Critical patent/GB842132A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers

Landscapes

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

Abstract

842,132. Valve amplifying circuits. GENERAL ELECTRIC CO. Ltd., and ELDER, K. F. Nov. 26, 1958 [Nov. 26, 1957], No. 36873/57. Class 40(6). A selective low-frequency amplifier comprises a valve with two grids between cathode and anode, in which negative feedback is applied between anode and the inner grid via a frequencyselective twin-T network 1 and the signal is applied to the outer grid 19. The output is taken from the anode, the load comprising a tapped resistor 14 to which the network 1 is connected via blocking condenser 16 and switch 15, the position of which determines the bandwidth. The valve may be of the directly-heated screengrid type, the outer grid 19 comprising the screen-grid and being fed via series resistor 22. The arrangement permits of the bandwidth and centre frequency being varied without affecting the input impedance.
GB3687357A 1957-11-26 1957-11-26 Improvements in or relating to electric amplifier arrangements Expired GB842132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3687357A GB842132A (en) 1957-11-26 1957-11-26 Improvements in or relating to electric amplifier arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3687357A GB842132A (en) 1957-11-26 1957-11-26 Improvements in or relating to electric amplifier arrangements

Publications (1)

Publication Number Publication Date
GB842132A true GB842132A (en) 1960-07-20

Family

ID=10391873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3687357A Expired GB842132A (en) 1957-11-26 1957-11-26 Improvements in or relating to electric amplifier arrangements

Country Status (1)

Country Link
GB (1) GB842132A (en)

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