GB264234A - Improvements in thermionic valves - Google Patents

Improvements in thermionic valves

Info

Publication number
GB264234A
GB264234A GB2571125A GB2571125A GB264234A GB 264234 A GB264234 A GB 264234A GB 2571125 A GB2571125 A GB 2571125A GB 2571125 A GB2571125 A GB 2571125A GB 264234 A GB264234 A GB 264234A
Authority
GB
United Kingdom
Prior art keywords
strips
anode
grid
valve
envelope
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
GB2571125A
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 to NL28223D priority Critical patent/NL28223C/xx
Application filed by Individual filed Critical Individual
Priority to GB2571125A priority patent/GB264234A/en
Priority to DEM96519D priority patent/DE520061C/en
Publication of GB264234A publication Critical patent/GB264234A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/78—One or more circuit elements structurally associated with the tube
    • 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
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/01—Generation of oscillations using transit-time effects using discharge tubes

Landscapes

  • General Induction Heating (AREA)
  • Plasma Technology (AREA)

Abstract

264,234. Marconi, G., and Franklin, C. S. Oct. 14, 1925. Vacuum tubes.- A valve for generating very short waves has the oscillatory circuit entirely within the valve and the seals for making connection to the anode and grid carry only the anode feed and grid currents respectively. As shown in Fig. 1 the grid G is supported by a metal cone, or strips X lying along the surface of a cone, on a ring O encircling the glass foot W, and the anode A is supported by a metal cylinder, or strips Y lying along a cylindrical surface, on a ring P separated from the ring O by insulation M. The capacity between the rings should be large compared with the capacity between the grid and anode. The oscillatory circuit consists of the capacity between the rings, and between the grid and anode, in series with the inductance of the strips. The rings O, P are connected with seals G S, A S respectively. The valve shown in Fig. 2 has two sets of electrodes, the grids G<1>, G<2> and anodes A<1>, A<2> being connected by metal strips X, Y respectively, connection to the seals being made from the centre points of the strips. The grids and anodes may be supported from the ends of the envelope. Energy is transferred to an external circuit such as a tuned aerial by means of a small condenser in the filament leads on the valve side of chokes, or by electrostatic induction through the envelope; or the aerial may be mounted within the envelope.
GB2571125A 1925-10-14 1925-10-14 Improvements in thermionic valves Expired GB264234A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL28223D NL28223C (en) 1925-10-14
GB2571125A GB264234A (en) 1925-10-14 1925-10-14 Improvements in thermionic valves
DEM96519D DE520061C (en) 1925-10-14 1926-10-14 Tube generator for short waves with a frequency-determining oscillation circuit in the tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2571125A GB264234A (en) 1925-10-14 1925-10-14 Improvements in thermionic valves

Publications (1)

Publication Number Publication Date
GB264234A true GB264234A (en) 1927-01-14

Family

ID=10232037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2571125A Expired GB264234A (en) 1925-10-14 1925-10-14 Improvements in thermionic valves

Country Status (3)

Country Link
DE (1) DE520061C (en)
GB (1) GB264234A (en)
NL (1) NL28223C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749625C (en) * 1932-07-22 1944-11-27 Tube arrangement for fanning, particularly amplifying ultra-short electrical waves
DE750714C (en) * 1933-07-21 1945-01-29 Tube arrangement for fanning (generating, receiving, amplifying) ultra-short electrical waves
DE747903C (en) * 1935-12-14 1953-02-23 Julius Pintsch K G Tube arrangement for fanning ultra high frequency electromagnetic vibrations
US2145735A (en) * 1936-01-29 1939-01-31 Gen Electric Short wave radio transmitter

Also Published As

Publication number Publication date
DE520061C (en) 1931-03-06
NL28223C (en)

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