GB452790A - Improvements in or relating to electron discharge device circuit arrangements - Google Patents
Improvements in or relating to electron discharge device circuit arrangementsInfo
- Publication number
- GB452790A GB452790A GB6397/35A GB639735A GB452790A GB 452790 A GB452790 A GB 452790A GB 6397/35 A GB6397/35 A GB 6397/35A GB 639735 A GB639735 A GB 639735A GB 452790 A GB452790 A GB 452790A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- current
- anode
- resistances
- causes
- 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
Links
- 230000001186 cumulative effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
- H03K3/05—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback
- H03K3/06—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator
- H03K3/12—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
- H03K3/13—Bistables with hysteresis, e.g. Schmitt trigger
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electron Sources, Ion Sources (AREA)
- X-Ray Techniques (AREA)
- Particle Accelerators (AREA)
Abstract
452,790. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.- (Assignees of Mathes, R. E. ; 755, Belvidero Avenue, Westfield, New Jersey, U.S.A.) Feb. 28, 1935, No. 6397. Convention date, Feb. 28, 1934. [Class 40 (v)] A thermionic trigger arrangement comprises a single valve having two control grids G1, G4, a grid-anode G2 and a plate anode P. With no signal from S, the control grid G1 is so biassed from - EC and R1 that the electron stream is partially blocked. The grid-anode G2 passes current due to positive bias from +EB through R6, the values of resistances R4, in the circuit of the second control grid G4 and R5, connecting anode G2 and grid G4, being chosen so that the p.d. across R6 produces such a potential on G4 that the anode P passes current which flows through R3. Resistances R1, R2 are such that the potential of G1 is not affected. A positive pulse from S increases current from G2 through R6 and the negative bias on grid G4 is thereby increased, reducing current drawn by anode P through R3. The action is cumulative until current from G2 reaches saturation ; this is the first condition of stability. A negative signal pulse from S causes the converse cycle to occur, anode current from P reaching a maximum and current from G2 a minimum; until the second stable condition is reached. In a modification, Fig. 2 (not shown), the signals are applied to the outer grid G4, the inner grid G1 being connected to the cathode ; resistances R1, R2 are consequently omitted. The grid G4 when positive causes plate current to increase and when negative causes increase in current to the grid G2, robbing the plate current. Values of the resistances are indicated in the Specification.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US452790XA | 1934-02-28 | 1934-02-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB452790A true GB452790A (en) | 1936-08-28 |
Family
ID=21936976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6397/35A Expired GB452790A (en) | 1934-02-28 | 1935-02-28 | Improvements in or relating to electron discharge device circuit arrangements |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE680103C (en) |
GB (1) | GB452790A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB663574A (en) * | 1949-03-04 | 1951-12-27 | Standard Telephones Cables Ltd | Improvements in or relating to electrical circuits employing static electrical switches |
US2631233A (en) * | 1950-12-28 | 1953-03-10 | Ibm | Secondary emission trigger circuit |
-
1935
- 1935-02-28 DE DER92753D patent/DE680103C/en not_active Expired
- 1935-02-28 GB GB6397/35A patent/GB452790A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE680103C (en) | 1939-08-22 |
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