GB335484A - Improvements in and relating to thermionic amplifiers - Google Patents

Improvements in and relating to thermionic amplifiers

Info

Publication number
GB335484A
GB335484A GB60030A GB60030A GB335484A GB 335484 A GB335484 A GB 335484A GB 60030 A GB60030 A GB 60030A GB 60030 A GB60030 A GB 60030A GB 335484 A GB335484 A GB 335484A
Authority
GB
United Kingdom
Prior art keywords
valve
grid
stage
heated
anode
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
GB60030A
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DEA52477D external-priority patent/DE487382C/en
Priority claimed from DEA53385D external-priority patent/DE489204C/en
Application filed by Individual filed Critical Individual
Publication of GB335484A publication Critical patent/GB335484A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits
    • H04B1/1623—Supply circuits using tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

335,484. Asch, E. Jan. 8, 1929, [Convention date]. Addition to 300,511. Vacuum tubes.-In a cascade resistancecoupled amplifier in which the anode of one stage is directly coupled to the grid of the next stage as described in the parent Specification, the cathodes are heated separately and independently of one another. The Figure shows a two-stage amplifier in which the first valve l1 is indirectly heated and the second valve l2 is directly heated through separate transformer windings. The voltage-dropping resistance r may be variable to adjust the grid bias of the second valve. The valves may be constructed as described in the parent Specification in a single envelope and with a single element forming the grid of one valve and the anode of the preceding valve.
GB60030A 1927-11-10 1930-01-07 Improvements in and relating to thermionic amplifiers Expired GB335484A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEA52477D DE487382C (en) 1927-11-10 1927-11-10 DC amplifier
DEA53385D DE489204C (en) 1927-11-10 1928-02-22 Arrangement for direct current amplifier
DEA56419D DE499601C (en) 1927-11-10 1929-01-08 DC amplifier

Publications (1)

Publication Number Publication Date
GB335484A true GB335484A (en) 1930-09-25

Family

ID=31950166

Family Applications (1)

Application Number Title Priority Date Filing Date
GB60030A Expired GB335484A (en) 1927-11-10 1930-01-07 Improvements in and relating to thermionic amplifiers

Country Status (2)

Country Link
DE (1) DE499601C (en)
GB (1) GB335484A (en)

Also Published As

Publication number Publication date
DE499601C (en) 1930-06-10

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