GB936099A - Electrical oscillator - Google Patents

Electrical oscillator

Info

Publication number
GB936099A
GB936099A GB506662A GB506662A GB936099A GB 936099 A GB936099 A GB 936099A GB 506662 A GB506662 A GB 506662A GB 506662 A GB506662 A GB 506662A GB 936099 A GB936099 A GB 936099A
Authority
GB
United Kingdom
Prior art keywords
transistor
base
tuned circuit
emitters
capacitors
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
GB506662A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB936099A publication Critical patent/GB936099A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/123—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal directly commands a frequency generator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/24—Automatic control of frequency or phase; Synchronisation using a reference signal directly applied to the generator

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

936,099. Transistor oscillator circuits. STANDARD TELEPHONES & CABLES Ltd. Feb. 9, 1962 [Feb. 11, 1961], No. 5066/62. Glass 40 (6). An oscillator comprises a pair of transistors 5, 6 whose collectors are connected together, and a tuned circuit connected between the common point of the collectors and the emitters of the first, the emitters of the second transistor being connected to the base of the first, and the base of the second transistor being connected to a tapping on the tuned circuit. As described, the tuned circuit comprises a capacitor 4 in parallel with a series arrangement of an inductor 1 and capacitors 2, 3 the tapping point for the base of transistor 6 being the junction between the capacitors 2, 3. The bias circuit for the base of transistor 6 includes a temperature sensitive resistor 7 for stabilization, and synchronization may be applied to the base of transistor 5 via capacitor 8.
GB506662A 1961-02-11 1962-02-09 Electrical oscillator Expired GB936099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST17450A DE1129566B (en) 1961-02-11 1961-02-11 Synchronizable transistor oscillator

Publications (1)

Publication Number Publication Date
GB936099A true GB936099A (en) 1963-09-04

Family

ID=7457476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB506662A Expired GB936099A (en) 1961-02-11 1962-02-09 Electrical oscillator

Country Status (3)

Country Link
CH (1) CH395208A (en)
DE (1) DE1129566B (en)
GB (1) GB936099A (en)

Also Published As

Publication number Publication date
CH395208A (en) 1965-07-15
DE1129566B (en) 1962-05-17

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