GB147851A - Improvements in or relating to thermionic valve generators - Google Patents

Improvements in or relating to thermionic valve generators

Info

Publication number
GB147851A
GB147851A GB19903/20A GB1990320A GB147851A GB 147851 A GB147851 A GB 147851A GB 19903/20 A GB19903/20 A GB 19903/20A GB 1990320 A GB1990320 A GB 1990320A GB 147851 A GB147851 A GB 147851A
Authority
GB
United Kingdom
Prior art keywords
anode
connexions
cathode
tubes
grids
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
GB19903/20A
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.)
Telefunken AG
Original Assignee
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
Publication of GB147851A publication Critical patent/GB147851A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube

Landscapes

  • X-Ray Techniques (AREA)
  • Microwave Tubes (AREA)

Abstract

147,851. Ges. fiir Drahtlose Telegraphie. Jan. 9, 1918, [Convention date]. Vacuum tubes.-To avoid loss of efficiency in thermionic-valve transmitting-apparatus for wireless telegraphy, owing to current in the grid circuit due to current in the anode circuit differing from sine form, two tubes are used connected in opposition as shown in Fig. 3, the anode of one tube being connected to the cathode of the other. With inductances in the oscillation circuit, the connexions of the tubes may be displaced with respect to one another, three particular cases arising when, respectively, the grid connexions, anode connexions, and cathode connexions coincide. The last two cases allow the use of a single tube containing a common anode (or cathode) and two symmetrically-disposed cathodes (or anodes) and grids. A tube with a common anode and symmetrically-disposed cathodes and grids is shown connected-up in Fig. 11.
GB19903/20A 1918-01-09 1920-07-09 Improvements in or relating to thermionic valve generators Expired GB147851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE147851X 1918-01-09

Publications (1)

Publication Number Publication Date
GB147851A true GB147851A (en) 1921-10-10

Family

ID=5672277

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19903/20A Expired GB147851A (en) 1918-01-09 1920-07-09 Improvements in or relating to thermionic valve generators

Country Status (2)

Country Link
DE (1) DE307055C (en)
GB (1) GB147851A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128856A (en) * 1999-03-19 2000-10-10 Doan; Linh V. Automatic watering pot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128856A (en) * 1999-03-19 2000-10-10 Doan; Linh V. Automatic watering pot

Also Published As

Publication number Publication date
DE307055C (en)

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