GB738409A - Improvements in or relating to electric amplifiers - Google Patents

Improvements in or relating to electric amplifiers

Info

Publication number
GB738409A
GB738409A GB297853A GB297853A GB738409A GB 738409 A GB738409 A GB 738409A GB 297853 A GB297853 A GB 297853A GB 297853 A GB297853 A GB 297853A GB 738409 A GB738409 A GB 738409A
Authority
GB
United Kingdom
Prior art keywords
circuit
valve
transistor
tuned
output
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
GB297853A
Inventor
Eric John Gargini
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB297853A priority Critical patent/GB738409A/en
Publication of GB738409A publication Critical patent/GB738409A/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
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)

Abstract

738,409. Valve amplifier circuits; transistor amplifier circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 21, 1954 [Feb. 3, 1953], No. 2978/53. Class 40 (6). An amplifier comprises a tuned input circuit 2 coupled through a series tuned circuit 3, 4 to the cathode of a valve or the emitter of a transistor the valve or transistor having a control or base electrode which is grounded and an output circuit 9, 10 connected to an output electrode, the input circuit and the impedance of the output circuit as reflected into the cathode or emitter forming the shunt arms of a band-pass filter, the series arm of which is the series tuned circuit. The valve 5 in the circuit shown may be replaced by a junction transistor and the output circuit 9, 10 may be a simple tuned circuit or a band-pass circuit.
GB297853A 1953-02-03 1953-02-03 Improvements in or relating to electric amplifiers Expired GB738409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB297853A GB738409A (en) 1953-02-03 1953-02-03 Improvements in or relating to electric amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB297853A GB738409A (en) 1953-02-03 1953-02-03 Improvements in or relating to electric amplifiers

Publications (1)

Publication Number Publication Date
GB738409A true GB738409A (en) 1955-10-12

Family

ID=9749614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB297853A Expired GB738409A (en) 1953-02-03 1953-02-03 Improvements in or relating to electric amplifiers

Country Status (1)

Country Link
GB (1) GB738409A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061390B (en) * 1956-09-28 1959-07-16 Siemens Ag Transmitter circuit with modulated output stage in grid base circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061390B (en) * 1956-09-28 1959-07-16 Siemens Ag Transmitter circuit with modulated output stage in grid base circuit

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