GB686577A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB686577A
GB686577A GB265251A GB265251A GB686577A GB 686577 A GB686577 A GB 686577A GB 265251 A GB265251 A GB 265251A GB 265251 A GB265251 A GB 265251A GB 686577 A GB686577 A GB 686577A
Authority
GB
United Kingdom
Prior art keywords
grids
valve
triode
class
construction
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
GB265251A
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 GB265251A priority Critical patent/GB686577A/en
Publication of GB686577A publication Critical patent/GB686577A/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

  • Amplifiers (AREA)

Abstract

686,577. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Feb. 2, 1951, No. 2652/51. Class 39(i) [Also in Group XXXVI] In a double triode having separate cathodes, and intended for use as a grounded grid amplifier in the frequency range 50-450 Mc/s, the grids are coupled together so that with push-pull input the H.F. potential difference between them is less than half the H.F. potential difference between the two cathodes. Fig. 2 shows an embodiment designed for transmitting purposes, and operating under class C condtions, with a suitable push-pull circuit. A condenser 20 couples the two grids 4, which are taken to ground through biasing networks 21, 22. 17 and 16 are tuned input and output circuits. Fig. 5 shows a practical form of the valve, each triode section being of similar construction to the valve described in Specification 668,443. The two anode portions 37 of each triode are connected above the upper mica spacer 32 by a bridge member 39, 40. The anode connections are taken out through top caps 31, all the remaining connections passing out through the valve base. The coupling condenser is of laminated construction and is attached under the lower mica spacer 33, as at 42. Figs. 1 and 3 (not shown) are of a modified valve construction and circuit for receiving purposes, operating under Class A conditions. In this form the grids are connected directly.
GB265251A 1951-02-02 1951-02-02 Improvements in or relating to electron discharge devices Expired GB686577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB265251A GB686577A (en) 1951-02-02 1951-02-02 Improvements in or relating to electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB265251A GB686577A (en) 1951-02-02 1951-02-02 Improvements in or relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB686577A true GB686577A (en) 1953-01-28

Family

ID=9743348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB265251A Expired GB686577A (en) 1951-02-02 1951-02-02 Improvements in or relating to electron discharge devices

Country Status (1)

Country Link
GB (1) GB686577A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1031896B (en) * 1956-06-25 1958-06-12 Gen Electric Electrode structure for a multiple tube system
DE1087710B (en) * 1958-05-05 1960-08-25 Siemens Edison Swan Ltd Incandescent cathode tubes with a main and an auxiliary electrode assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1031896B (en) * 1956-06-25 1958-06-12 Gen Electric Electrode structure for a multiple tube system
DE1087710B (en) * 1958-05-05 1960-08-25 Siemens Edison Swan Ltd Incandescent cathode tubes with a main and an auxiliary electrode assembly

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