GB369480A - Improvements in or relating to thermionic amplifier circuit-arrangements with parallel feeding - Google Patents
Improvements in or relating to thermionic amplifier circuit-arrangements with parallel feedingInfo
- Publication number
- GB369480A GB369480A GB17374/31A GB1737431A GB369480A GB 369480 A GB369480 A GB 369480A GB 17374/31 A GB17374/31 A GB 17374/31A GB 1737431 A GB1737431 A GB 1737431A GB 369480 A GB369480 A GB 369480A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diode
- filament
- earth
- amplifier circuit
- capacity
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0138—Electrical filters or coupling circuits
- H03H7/0146—Coupling circuits between two tubes, not otherwise provided for
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microwave Tubes (AREA)
- Amplifiers (AREA)
- Electronic Switches (AREA)
- Microwave Amplifiers (AREA)
Abstract
369,480. Valve circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 15, 1931, No. 17374. Convention date, June 21, 1930. Drawings to Specification. [Classes 39 (i) and 40 (v).] In an amplifier circuit employing parallel feed, the anode current is fed over a saturated diode having an indirectly-heated cathode. The invention utilizes the fact that a saturated diode has practically infinite resistance to alternating current and low resistance to direct current. The appreciable capacity between the diode filament and earth and between the amplifier valve filament and earth results in an effective capacity shunt across the diode which is eliminated by using an equipotential cathode and reducing the filament-earth capacity by winding the heater round the anode which is in the form of a spiral, and employing a very thin cathode.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL369480X | 1930-06-21 | ||
US545946A US1957542A (en) | 1930-06-21 | 1931-06-22 | Amplifying circuit arrangement with parallel supply |
US678040A US2092881A (en) | 1930-06-21 | 1933-06-28 | Electron discharge device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB369480A true GB369480A (en) | 1932-03-24 |
Family
ID=31998808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17374/31A Expired GB369480A (en) | 1930-06-21 | 1931-06-15 | Improvements in or relating to thermionic amplifier circuit-arrangements with parallel feeding |
Country Status (5)
Country | Link |
---|---|
US (1) | US2092881A (en) |
BE (1) | BE380459A (en) |
DE (1) | DE563558C (en) |
GB (1) | GB369480A (en) |
NL (1) | NL34771C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE757106C (en) * | 1937-04-01 | 1953-02-23 | Siemens & Halske A G | Radiation-cooled heat conductor for regulating very small powers |
US4984320A (en) * | 1989-04-17 | 1991-01-15 | Foot-Joy, Inc. | Shoe sole embossed composition and method |
-
0
- NL NL34771D patent/NL34771C/xx active
- BE BE380459D patent/BE380459A/xx unknown
-
1931
- 1931-06-13 DE DEN32221D patent/DE563558C/en not_active Expired
- 1931-06-15 GB GB17374/31A patent/GB369480A/en not_active Expired
-
1933
- 1933-06-28 US US678040A patent/US2092881A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL34771C (en) | |
BE380459A (en) | |
DE563558C (en) | 1932-11-07 |
US2092881A (en) | 1937-09-14 |
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