US1958591A - Vacuum tube - Google Patents

Vacuum tube Download PDF

Info

Publication number
US1958591A
US1958591A US222236A US22223627A US1958591A US 1958591 A US1958591 A US 1958591A US 222236 A US222236 A US 222236A US 22223627 A US22223627 A US 22223627A US 1958591 A US1958591 A US 1958591A
Authority
US
United States
Prior art keywords
antenna
tube
grid
plate
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 - Lifetime
Application number
US222236A
Other languages
English (en)
Inventor
Walter Van B Roberts
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Priority to US222236A priority Critical patent/US1958591A/en
Priority to DER75388D priority patent/DE510812C/de
Priority to GB27637/28A priority patent/GB297775A/en
Application granted granted Critical
Publication of US1958591A publication Critical patent/US1958591A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons

Definitions

  • This invention relates to .a vacuum tube and has for its object the provision of a thermionic vessel especially adapted for extremely short wave work.
  • Fig. 1 shows partially diagrammatically according to my invention, an improved thermionic vessel and receiving and transmitting circuits therefor;
  • Fig. 4 diagrammatically shows a part of a tube according to my invention having an antenna attached to the exterior of its envelope;
  • Fig. 5 shows diagrammatically another form of my invention wherein a radiating element is attached directly to the plate of my tube;
  • Fig. 6 shows a part of another tube built according to my invention wherein the antenna is in two sections and attached directly to the grid battery 11 a source of plate potential is provided.
  • An adjustable tap 12 is provided for varying the plate potential.
  • Switch 13 connects in series with the plate circuit telephone 14 for receiving, and alternately a bumer 15 for transmitting 6 chopped waves. It is obvious, of course, that the buzzer 15 may bereplaced by a microphone for telephony if so desired.
  • the plate voltage or grid bias is varied until the tube is in an oscillating condition the frequency of oscillations being determined by the electrical constants of the antenna 16 which has a distributed capacity indicated by the dotted lines 17.
  • the coupling between the plate circuit, grid circuit, and antenna may be simply the straight portion 18 of the lead to the grid, the straight portion 19 of the plate lead and the adjacent straight portion of the antenna 16.
  • a few turns may be introduced into either the antenna, straight portion 18 or straight portion 19 or any number of these parts as desired.
  • the antenna may be timed by leaving the antenna 16 protrude from each of the reentrant ends 28 of my tube and by cutting its length until it has the desired electrical characteristics.
  • a grid, a filament and a plate all within an evacuated envelope means for tuning the antenna and means for varying the coupling between the antenna and a circuit within the en'- velope.
  • An electron discharge device having an anode, a cathode, and a control grid mounted within an evacuated container, a straight wire antenna carried by the container, and, a curved metallic reflector penetrated by said device, said antenna lying substantially along the focal axis of the reflector.
  • An electron discharge device comprising a.
  • An electron discharge device comprising a cathode, anode and control electrode within an evacuated container, individual leads for said anode and control electrodes, each of said leads having straight linear portions within said container, other straight linear elements forming radiators coupled to each of said first linear portions.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Eyeglasses (AREA)
US222236A 1927-09-27 1927-09-27 Vacuum tube Expired - Lifetime US1958591A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US222236A US1958591A (en) 1927-09-27 1927-09-27 Vacuum tube
DER75388D DE510812C (de) 1927-09-27 1928-08-10 Roehrensender und -empfaenger fuer kurze Wellen
GB27637/28A GB297775A (https=) 1927-09-27 1928-09-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US222236A US1958591A (en) 1927-09-27 1927-09-27 Vacuum tube

Publications (1)

Publication Number Publication Date
US1958591A true US1958591A (en) 1934-05-15

Family

ID=22831423

Family Applications (1)

Application Number Title Priority Date Filing Date
US222236A Expired - Lifetime US1958591A (en) 1927-09-27 1927-09-27 Vacuum tube

Country Status (3)

Country Link
US (1) US1958591A (https=)
DE (1) DE510812C (https=)
GB (1) GB297775A (https=)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434792A (en) * 1944-05-30 1948-01-20 Philco Corp High-frequency amplifier
US2459859A (en) * 1945-03-23 1949-01-25 Standard Telephones Cables Ltd Grid structure for electron discharge devices
US2627026A (en) * 1945-04-23 1953-01-27 Standard Telephones Cables Ltd High altitude antenna
US2707750A (en) * 1948-06-08 1955-05-03 Sylvania Electric Prod Ultra high frequency translator
US2855543A (en) * 1953-04-30 1958-10-07 Gen Electric Microwave beam transmitter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750631C (de) * 1936-06-13 1945-01-20 Elektrische Entladungsroehre mit einem Schwingungsgenerator, zweckmaessig einem Magnetrongenerator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434792A (en) * 1944-05-30 1948-01-20 Philco Corp High-frequency amplifier
US2459859A (en) * 1945-03-23 1949-01-25 Standard Telephones Cables Ltd Grid structure for electron discharge devices
US2627026A (en) * 1945-04-23 1953-01-27 Standard Telephones Cables Ltd High altitude antenna
US2707750A (en) * 1948-06-08 1955-05-03 Sylvania Electric Prod Ultra high frequency translator
US2855543A (en) * 1953-04-30 1958-10-07 Gen Electric Microwave beam transmitter

Also Published As

Publication number Publication date
DE510812C (de) 1930-10-23
GB297775A (https=) 1929-09-26

Similar Documents

Publication Publication Date Title
US2304186A (en) Velocity modulated tube
US2106771A (en) Ultrahigh frequency signaling
US2217745A (en) Ultra high frequency oscillation circuits
US2421725A (en) Variable frequency cavity resonator oscillator
US2128236A (en) Vacuum discharge tube
US2235414A (en) Thermionic valve circuits
US2128234A (en) Electron tube
US2108900A (en) Ultrashort wave oscillation generator circuit
US2409693A (en) Electron discharge device
US1958591A (en) Vacuum tube
US1978021A (en) Ultrashort wave system
US2061508A (en) Ultra short wave apparatus
US2425738A (en) Tunable high-frequency electron tube structure
US2660667A (en) Ultrahigh frequency resonator
US2404745A (en) Ultra high frequency electron discharge device system
US2462137A (en) Electron discharge device
US2476725A (en) Ultra high frequency oscillator device
US2432571A (en) Electron discharge device employing resonators
US2138161A (en) Oscillatory circuit
US2245669A (en) Oscillation generator
US2074253A (en) Ultrashort wave tube
US2057170A (en) Oscillation generation
US2863092A (en) Magnetron oscillators
US2247216A (en) Resonant line control oscillation generator
US1994219A (en) Operating electric discharge device