GB642112A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB642112A
GB642112A GB430947A GB430947A GB642112A GB 642112 A GB642112 A GB 642112A GB 430947 A GB430947 A GB 430947A GB 430947 A GB430947 A GB 430947A GB 642112 A GB642112 A GB 642112A
Authority
GB
United Kingdom
Prior art keywords
cathode
triode
separate
relating
mixer
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
GB430947A
Inventor
Douglas Cecil Rogers
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB430947A priority Critical patent/GB642112A/en
Publication of GB642112A publication Critical patent/GB642112A/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

642,112. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Feb. 14, 1947, No. 4309. [Class 39 (i)] A triode-hexode or -heptode frequency-changer has the cathode 12 of the triode section electrically separate from the cathode 6 of the mixer section, both cathodes being connected by separate leads to the same pin 18 in the base. Cathode 6 is con. nected directly by lead 19, and cathode 12 via strap 16 and support rod 17. The arrangement is stated to reduce the impedance causing coupling between the two sections when they have a common cathode. A common heater, or separate parallel heaters, may be used. One or more of the triode grid supports may be extensions of corresponding supports for grid 8 of the mixer.
GB430947A 1947-02-14 1947-02-14 Improvements in or relating to electron discharge devices Expired GB642112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB430947A GB642112A (en) 1947-02-14 1947-02-14 Improvements in or relating to electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB430947A GB642112A (en) 1947-02-14 1947-02-14 Improvements in or relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB642112A true GB642112A (en) 1950-08-30

Family

ID=9774735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB430947A Expired GB642112A (en) 1947-02-14 1947-02-14 Improvements in or relating to electron discharge devices

Country Status (1)

Country Link
GB (1) GB642112A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951958A (en) * 1958-05-05 1960-09-06 Siemens Edison Swan Ltd Thermionic valves
DE1120607B (en) * 1960-09-26 1961-12-28 Siemens Ag Multiple tubes in miniature technology with two systems built one above the other between four parallel mica disks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951958A (en) * 1958-05-05 1960-09-06 Siemens Edison Swan Ltd Thermionic valves
DE1120607B (en) * 1960-09-26 1961-12-28 Siemens Ag Multiple tubes in miniature technology with two systems built one above the other between four parallel mica disks

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