US1955011A - Electric short wave thermionic valve generator - Google Patents

Electric short wave thermionic valve generator Download PDF

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Publication number
US1955011A
US1955011A US651570A US65157033A US1955011A US 1955011 A US1955011 A US 1955011A US 651570 A US651570 A US 651570A US 65157033 A US65157033 A US 65157033A US 1955011 A US1955011 A US 1955011A
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US
United States
Prior art keywords
anode
envelope
parts
circuit
generator
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
US651570A
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English (en)
Inventor
Christopher Eric
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.)
MO Valve Co Ltd
Original Assignee
MO Valve Co Ltd
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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Application granted granted Critical
Publication of US1955011A publication Critical patent/US1955011A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
    • H01J25/54—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having only one cavity or other resonator, e.g. neutrode tubes

Definitions

  • This invention relates to valve generators of short electrical waves enclosed in sealed envelopes.
  • short waves are meant those of wave length less than 3 metres.
  • a generator of short waves is usually connected to a circuit tuned to the frequency of the waves. If this circuit is placed outside the envelope of the generator, it is often difiicult to make the circuit small enough to have the necessary high frequency, because the leads from the interior to the exterior form part of the circuit; further trouble arises from the capacity between the leads where they pass through the envelope.
  • a valve generatorof short electric waves comprises a tuned circuit enclosed within its envelope, the frequency of which can be varied without opening the envelope.
  • the valve generator is of the kind in which the anode consists of two parts and a magnetic field.
  • 3' are leads to the two parts of the anode, sealed through thefenvelope 4.
  • the" leads have the form of a substantially parallel pair of straight wires which are divided into two sections 5, 5' and 6, 6 by the movable bridge piece .of metal 7. This bridge piece does notrest on the wires, but is supported out of contact with them on the glass fork 8,
  • the two prongs of the fork 8 are parallel to the wires and are provided with pairs of corresponding notches 9, in one of which the bridge piece 7 rests; it can be moved from one pair of 4 corresponding notches to another by tilting the vessel, and the length of the be varied. 4 a
  • the tuned circuit consists of the anode segments '1, 1', the parts 5, 5' of the anode leads 5 attached to them and the bridgepiece '7; the capacity between the bridge piece and the wires provides part of the capacity of the circuit and at the same time couples the tuned circuit to the output circuit consisting ofthe parts 6, 6 of the section 5, 5' can thus anode leads and any apparatus connected to them
  • a 1, 1' are the two parts of the. anode; 2 the incandescent cathode enclosed by changed.
  • a valve generatorof short electric waves including in combination in a sealedenvelope an electrode adapted to act as anode, an electrode adapted to act as cathode, a tuned circuit, and means within. the envelope forvarying the frequency of said tuned circuit without opening the envelope.
  • a valve generator of short electric waves in-- cluding in combination in a sealed envelope an electrode adapted to'act as anode and divided into a plurality of parts, an electrode adapted to act as cathode surrounded by the said parts of the said divided anode, a timed circuit, and means within the envelope for varying the frequency of said tuned circuit without opening the envelope.
  • a valve generator of short electric waves including" in combination in a sealed envelope an electrode adapted .to act as anode and-divided into a plurality. of parts, an electrode adapted to actas cathode surrounded by the said parts of the said divided anode and a tuned circuit, the frequency of which can be varied without opening the envelope, said circuit comprising two substantially'parallel conducting members each at,-
  • a valve generator of short electric waves including in combination in a sealed envelope an electrode adapted to act as anode and divided into a plurality of parts, an electrode adapted to act as cathode surrounded by the said parts of the said divided anode-ands.
  • tuned circuit the frequency of whichcan be varied'without opening the envelope, said circuit comprising two substantially'parallel conducting members each attached to an electrode in the valve and a movable bridgepiece mounted near but not incontact with the said wires supported freely on notched insulating members.
  • Avalve generator of short electric waves including'in combination in a sealed envelope an electrode adapted to act as anode and divided into a plurality of parts, an electrode adapted to act as cathode surrounded by the said parts of the said divided anode and a tuned circuit, the frequency of which can be varied without opening the envelope, said circuit comprising two substanelectrode adapted to act as anode and divided into a plurality of parts, an electrode adapted to act as cathode surrounded by the said parts of the said divided anode and a tuned circuit, the
  • said circuit comprising two substantially parallel conducting members each attached to an electrode in the valve and a movable bridge piece mounted near but not in contact with the said wires and supported freely on notched insulating members and movable along the length of the said two parallel conducting members, from one pair of notches to another in the said notched insulating members by a suitable movement of the whole generator and means for maintaining a magnetic field between the said parts of the said divided anode and the said cathode.

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  • Electrotherapy Devices (AREA)
US651570A 1932-01-21 1933-01-13 Electric short wave thermionic valve generator Expired - Lifetime US1955011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1955011X 1932-01-21

Publications (1)

Publication Number Publication Date
US1955011A true US1955011A (en) 1934-04-17

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ID=10894520

Family Applications (1)

Application Number Title Priority Date Filing Date
US651570A Expired - Lifetime US1955011A (en) 1932-01-21 1933-01-13 Electric short wave thermionic valve generator

Country Status (2)

Country Link
US (1) US1955011A (fr)
FR (1) FR748582A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749919C (de) * 1940-01-31 1944-12-08 Magnetfeldroehre
US2607904A (en) * 1948-10-18 1952-08-19 Csf Electron optical system for cathodes of electron beam tubes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4273760A (en) * 1979-02-05 1981-06-16 National Starch And Chemical Corporation Shampoo compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749919C (de) * 1940-01-31 1944-12-08 Magnetfeldroehre
US2607904A (en) * 1948-10-18 1952-08-19 Csf Electron optical system for cathodes of electron beam tubes

Also Published As

Publication number Publication date
FR748582A (fr) 1933-07-06

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