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
• • 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
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03F—AMPLIFIERS
  • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
  • H03F3/34—DC amplifiers in which all stages are DC-coupled
  • H03F3/36—DC amplifiers in which all stages are DC-coupled with tubes only
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03F—AMPLIFIERS
  • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
  • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
  • H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
  • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
  • H03H7/01—Frequency selective two-port networks
  • H03H7/0138—Electrical filters or coupling circuits
  • H03H7/0146—Coupling circuits between two tubes, not otherwise provided for

Landscapes

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

Applications Claiming Priority (1)

Publications (1)

Family

ID=22024683

Family Applications (1)

Country Status (7)

Families Citing this family (1)

Family Cites Families (11)

• 0
  • NL NL85225D patent/NL85225C/xx active
  • BE BE489442D patent/BE489442A/xx unknown
• 1948
  • 1948-11-12 US US59701A patent/US2649508A/en not_active Expired - Lifetime
• 1949
  • 1949-04-26 DE DEP40745A patent/DE814608C/de not_active Expired
  • 1949-04-27 CH CH273259D patent/CH273259A/de unknown
  • 1949-05-12 FR FR986127D patent/FR986127A/fr not_active Expired
  • 1949-11-11 GB GB28952/49A patent/GB676454A/en not_active Expired

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