GB768987A - Improvements in or relating to transistor amplifiers - Google Patents

Improvements in or relating to transistor amplifiers

Info

Publication number
GB768987A
GB768987A GB13191/55A GB1319155A GB768987A GB 768987 A GB768987 A GB 768987A GB 13191/55 A GB13191/55 A GB 13191/55A GB 1319155 A GB1319155 A GB 1319155A GB 768987 A GB768987 A GB 768987A
Authority
GB
United Kingdom
Prior art keywords
transistor
circuit
impedance
selectivity
fed
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
GB13191/55A
Other languages
English (en)
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB768987A publication Critical patent/GB768987A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/20—Combinations of two or more types of control, e.g. gain control and tone control in frequency-selective amplifiers
    • H03G9/24—Combinations of two or more types of control, e.g. gain control and tone control in frequency-selective amplifiers having semiconductor devices

Landscapes

  • Amplifiers (AREA)
GB13191/55A 1954-05-11 1955-05-06 Improvements in or relating to transistor amplifiers Expired GB768987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL331070X 1954-05-11

Publications (1)

Publication Number Publication Date
GB768987A true GB768987A (en) 1957-02-27

Family

ID=19784372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13191/55A Expired GB768987A (en) 1954-05-11 1955-05-06 Improvements in or relating to transistor amplifiers

Country Status (5)

Country Link
BE (1) BE538059A (enrdf_load_stackoverflow)
CH (1) CH331070A (enrdf_load_stackoverflow)
DE (1) DE969352C (enrdf_load_stackoverflow)
GB (1) GB768987A (enrdf_load_stackoverflow)
NL (2) NL187486B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145236B (de) * 1958-12-15 1963-03-14 Telefunken Patent Schaltungsanordnung zur selbsttaetigen Verstaerkungsregelung von Hoch- oder Zwischenfrequenzverstaerkern mit Transistoren oberhalb eines Schwellenwertes
DE1267286B (de) * 1959-03-05 1968-05-02 Philips Nv Empfangsschaltung mit Verstaerkungsregelung
DE1204286B (de) * 1961-03-23 1965-11-04 Telefunken Patent Selektiver regelbarer Transistorverstaerker
DE2259675C2 (de) * 1972-12-06 1982-03-04 Robert Bosch Gmbh, 7000 Stuttgart Hochfrequenzverstärker

Also Published As

Publication number Publication date
DE969352C (de) 1958-05-22
NL187486B (nl)
CH331070A (de) 1958-06-30
NL85795C (enrdf_load_stackoverflow)
BE538059A (enrdf_load_stackoverflow)

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