GB497359A - Improvements in vacuum electric tube devices - Google Patents

Improvements in vacuum electric tube devices

Info

Publication number
GB497359A
GB497359A GB1696737A GB1696737A GB497359A GB 497359 A GB497359 A GB 497359A GB 1696737 A GB1696737 A GB 1696737A GB 1696737 A GB1696737 A GB 1696737A GB 497359 A GB497359 A GB 497359A
Authority
GB
United Kingdom
Prior art keywords
grids
cathode
control
brass
rings
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
GB1696737A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB1696737A priority Critical patent/GB497359A/en
Publication of GB497359A publication Critical patent/GB497359A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/20—Tubes with more than one discharge path; Multiple tubes, e.g. double diode, triode-hexode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/003—Tubes with plural electrode systems

Landscapes

  • Electron Sources, Ion Sources (AREA)

Abstract

497,359. Thermionic valves. DODDS, J. M., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. June 18, 1937, No. 16967. [Class 39 (i)] A push-pull valve, which comprises a cathode on each side of which is arranged a control grid, screen grid and an anode, has a boxlike central metal envelope member through which pass laterally the conducting supports for the cathode and the control grids and also carries the screen grids so that in conjunction therewith the screening between the anodes and the control grids is completed. A brass or copper box-like ring 1 has demountably sealed thereto tubular insulators 2, 3 which are sealed demountably by plates 4. The cathode 6 which consists of a mesh, as described in Specification 478,373, or of parallel-connected filaments is clamped and supported from the member 1 in the manner described in Specification 497,362. The control grids 7, 8 consist, as described in Specification 497,361, of mesh windows carried in copper or brass rings 26 which are supported from the member 1 by thick copper or brass strips 27. Copper or brass cooling tubes 30 may be soldered to the rings 26 which are drilled so that the wires of the control grid may be threaded therethrough. An insulating or metal bar extends between, and is parallel to, the members 27 to which it is screwed by insulating pegs ; the bar is screwed to the member 1. The screen grids 9, 10 are carried in rings 31 having cylindrical extensions 32 which fit into recesses in the member 1 ; flanges 33 increase the screening. A flange on that side of the ring 31 facing the control grid is undercut at its outer periphery and is pro-. vided with two sets of cuts at right-angles to form pegs on which the grid wire is wound. Each anode has a conical face 39, is screwed into the plate 4 and is closed by a plate 38. Cooling fluid is supplied to a bore 36 and is expelled from the annular space between the anode and the insulator 3. Flanged rings 41 protect the seal. The member 1 is provided with cooling channels 42 and an evacuating conduit. As described in Specification 497,360, the valve may be provided with external circuits and screening boxes. The grids 9, 10 may form suppressor grids in which case the member 1 is maintained at earth potential and a separate lead is provided for screen grids. The leads of the cathode and of the control grids may be arranged at right-angles to one another. Specification 458,702 also is referred to.
GB1696737A 1937-06-18 1937-06-18 Improvements in vacuum electric tube devices Expired GB497359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1696737A GB497359A (en) 1937-06-18 1937-06-18 Improvements in vacuum electric tube devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1696737A GB497359A (en) 1937-06-18 1937-06-18 Improvements in vacuum electric tube devices

Publications (1)

Publication Number Publication Date
GB497359A true GB497359A (en) 1938-12-19

Family

ID=10086846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1696737A Expired GB497359A (en) 1937-06-18 1937-06-18 Improvements in vacuum electric tube devices

Country Status (1)

Country Link
GB (1) GB497359A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757945C (en) * 1939-08-12 1952-09-04 Aeg Push-pull tubes
DE974683C (en) * 1950-11-30 1961-03-30 Thomson Houston Comp Francaise Device for the boiling cooling of an electron tube with an outer anode
DE976657C (en) * 1942-09-01 1964-01-30 Erhard Fasshauer Electron tubes for ultrashort waves for generating high power and processes for their production

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757945C (en) * 1939-08-12 1952-09-04 Aeg Push-pull tubes
DE976657C (en) * 1942-09-01 1964-01-30 Erhard Fasshauer Electron tubes for ultrashort waves for generating high power and processes for their production
DE974683C (en) * 1950-11-30 1961-03-30 Thomson Houston Comp Francaise Device for the boiling cooling of an electron tube with an outer anode

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