US2283016A - High frequency stage - Google Patents

High frequency stage Download PDF

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Publication number
US2283016A
US2283016A US242911A US24291138A US2283016A US 2283016 A US2283016 A US 2283016A US 242911 A US242911 A US 242911A US 24291138 A US24291138 A US 24291138A US 2283016 A US2283016 A US 2283016A
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US
United States
Prior art keywords
high frequency
circuit
resistance
condensers
frequency stage
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 - Lifetime
Application number
US242911A
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English (en)
Inventor
Schrumpf Max
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
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 Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of US2283016A publication Critical patent/US2283016A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H03F1/14—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means
    • H03F1/16—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means in discharge-tube amplifiers

Definitions

  • the invention proposes not to include in the neutralization circuit special resistances but to make the leads to theneutralization condensers from a material which by its condition and form is possessed of a high alternating-current resistance.
  • leads made of German silver are particularly suitable.
  • Such leads are preferably tape-shaped.
  • the embodiment here shown is apush-pull connected amplifying stagev of a high frequency transmitter.
  • the electron tubes I, 2 are fastened in sockets 3, 4.
  • the grid circuit coil is denoted by 5 while the anode circuit coils are designated 6, "I.
  • Condensers 8, 9 serve for tuning the grid circuit.
  • Condensers III, II are neutralization condensers which by one of their coatings are directly. connected to the anodes I2, I3 of the tubes I, 2. the condensers II), II is in accordance with the invention joined to the grid circuit of the tubes I, 2 by German silver tapes I4, I5 arranged to cross each other.
  • the arrangement-here described is not limited in its application to push-pull connected stages but is applicable also to simple amplifying stages.
  • a high frequency amplifier comprising an amplifying circuit, a neutralizing condenser, and means for coupling said condenser in said circuit, comprising a resistance, said resistance consisting substantially of a substantially straight lead of material presenting a relatively high resistance to high frequency alternating currents.
  • a high frequency amplifier comprising an amplifying circuit, a neutralizing condenser, means for coupling one plate of said condenser to a predetermined point in said circuit, and a substantially straight lead of resistance material having a relatively high resistance at high frequencies,connected between the other plate of said condenser and another predetermined-point in said circuit.
  • a high frequency amplifier comprising electron tubes connected in push-pull relation, a neutralization circuit for said amplifier including a pair of condensers, means for coupling one plate of one of said condensers to a predetermined pointin said circuit, means for coupling one plate of the other of said condensers to another predetermined point in said circuit and resistance means for coupling the other'plates of said condensers to other predetermined points in said circuit comprising two substantially straight'tapes of material .having a relatively high resistance at high frequencies connected between said other plates and said other predetermined points.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
US242911A 1938-11-10 1938-11-29 High frequency stage Expired - Lifetime US2283016A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE212949X 1938-11-10

Publications (1)

Publication Number Publication Date
US2283016A true US2283016A (en) 1942-05-12

Family

ID=5810750

Family Applications (1)

Application Number Title Priority Date Filing Date
US242911A Expired - Lifetime US2283016A (en) 1938-11-10 1938-11-29 High frequency stage

Country Status (4)

Country Link
US (1) US2283016A (enrdf_load_stackoverflow)
BE (1) BE436845A (enrdf_load_stackoverflow)
CH (1) CH212949A (enrdf_load_stackoverflow)
FR (1) FR868417A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH212949A (de) 1940-12-31
FR868417A (fr) 1941-12-30
BE436845A (enrdf_load_stackoverflow)

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