GB456450A - Improvements in and relating to coupling means for thermionic valve circuits - Google Patents
Improvements in and relating to coupling means for thermionic valve circuitsInfo
- Publication number
- GB456450A GB456450A GB10394/35A GB1039435A GB456450A GB 456450 A GB456450 A GB 456450A GB 10394/35 A GB10394/35 A GB 10394/35A GB 1039435 A GB1039435 A GB 1039435A GB 456450 A GB456450 A GB 456450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- impedance
- anode
- resistance
- relating
- 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
- 238000010168 coupling process Methods 0.000 title abstract 4
- 238000005859 coupling reaction Methods 0.000 title abstract 4
- 230000008878 coupling Effects 0.000 title abstract 3
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/36—DC amplifiers in which all stages are DC-coupled with tubes only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/42—Modifications of amplifiers to extend the bandwidth
- H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
- H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Microwave Tubes (AREA)
Abstract
456,450. Valve circuits for amplifying. WHITE, E. L. C., 32, The Rise, Hilling- don, Middlesex. April 3, 1935, No. 10394. [Class 40 (v)] In a direct-coupled cascade amplifier for a wide range of frequencies in which the anode load impedance and anode impedance of a first valve can together be represented by a pure resistance R in series with an impedance Z, and in which the first valve is coupled to a second valve through an impedance Z<1> and a leak R<1> is provided between the grid and cathode of the second valve, the relationship Z<1>/Z = R<1>/R is maintained. In the case of a tetrode as shown in Fig. 1 the anode impedance of the first valve can be ignored and R = the coupling resistance R3, Z = R2/1+j#C2R2 , Z<1>=R<1>2/1+j#C<1>2R<1>2 and R<1>=R<1>3. Preferably, the leak resistance R<1>3 is much greater than R3. When the first valve is a triode, the calculations must take into account the effect of the anode impedance as a shunt to the anode load impedance. In a modification, Fig. 5 in which additional de-coupling elements R5, C5 are provided, additional coupling elements R5, C<1>5 are provided also. In all cases the time constants C2R2 and C<1>2 R<1>2 are equal and also C2R3 and C<1>2 R13.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR804804D FR804804A (en) | 1935-04-03 | ||
GB10394/35A GB456450A (en) | 1935-04-03 | 1935-04-03 | Improvements in and relating to coupling means for thermionic valve circuits |
DEE48203D DE757339C (en) | 1935-04-03 | 1936-04-04 | Amplifier for the transmission of a wide frequency band including direct current |
US73310A US2120823A (en) | 1935-04-03 | 1936-04-08 | Coupling means for thermionic valve circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB10394/35A GB456450A (en) | 1935-04-03 | 1935-04-03 | Improvements in and relating to coupling means for thermionic valve circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
GB456450A true GB456450A (en) | 1936-11-03 |
Family
ID=9967010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10394/35A Expired GB456450A (en) | 1935-04-03 | 1935-04-03 | Improvements in and relating to coupling means for thermionic valve circuits |
Country Status (4)
Country | Link |
---|---|
US (1) | US2120823A (en) |
DE (1) | DE757339C (en) |
FR (1) | FR804804A (en) |
GB (1) | GB456450A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE743491C (en) * | 1937-12-24 | 1943-12-27 | Opta Radio Ag | Capacitor resistor-coupled amplifier with gain control |
US2433378A (en) * | 1941-03-21 | 1947-12-30 | Standard Telephones Cables Ltd | Electrical oscillation generator |
DE846413C (en) * | 1939-05-10 | 1952-08-11 | Emi Ltd | Coupling circuit for broadband amplifier |
DE757339C (en) * | 1935-04-03 | 1953-02-02 | Emi Ltd | Amplifier for the transmission of a wide frequency band including direct current |
US2688078A (en) * | 1946-02-21 | 1954-08-31 | Us Navy | Multivibrator |
DE1126448B (en) * | 1958-03-08 | 1962-03-29 | Fernseh Gmbh | Circuit arrangement for the transmission of voltages or currents in electronic amplifiers for wide frequency bands, in particular television amplifiers or the like. |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2419682A (en) * | 1942-02-11 | 1947-04-29 | Jr Victor Guillemin | Electrocardiotachometer |
US2464252A (en) * | 1942-11-28 | 1949-03-15 | James R Moore | Pulsed oscillator |
US2435331A (en) * | 1943-10-04 | 1948-02-03 | Nasa | Vacuum tube amplifier |
BE464096A (en) * | 1944-03-11 | |||
US2481870A (en) * | 1945-12-14 | 1949-09-13 | L S Brach Mfg Corp | Wide band amplifier |
US2548436A (en) * | 1946-01-25 | 1951-04-10 | Hazeltine Corp | Television receiver background control circuit |
US2579528A (en) * | 1946-03-11 | 1951-12-25 | John E Williams | Differential electronic amplifier |
US2598326A (en) * | 1946-11-20 | 1952-05-27 | Emi Ltd | Negative feedback amplifier |
US2514023A (en) * | 1947-10-10 | 1950-07-04 | Ibm | Voltage generator |
US2689913A (en) * | 1949-01-18 | 1954-09-21 | Du Mont Allen B Lab Inc | Means for stabilizing oscillator circuit |
US2609446A (en) * | 1949-12-31 | 1952-09-02 | Honeywell Regulator Co | Electronic frequency eliminating apparatus |
US2777905A (en) * | 1952-08-28 | 1957-01-15 | Dunford A Kelly | Low distortion amplifier |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE632273C (en) * | 1933-10-25 | 1936-07-06 | Guenther Krawinkel Dr Ing | Amplifier with devices for eliminating interference voltages |
US2045316A (en) * | 1934-04-28 | 1936-06-23 | Rca Corp | Impedance coupled amplifier |
FR804804A (en) * | 1935-04-03 | 1936-11-03 |
-
0
- FR FR804804D patent/FR804804A/fr not_active Expired
-
1935
- 1935-04-03 GB GB10394/35A patent/GB456450A/en not_active Expired
-
1936
- 1936-04-04 DE DEE48203D patent/DE757339C/en not_active Expired
- 1936-04-08 US US73310A patent/US2120823A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE757339C (en) * | 1935-04-03 | 1953-02-02 | Emi Ltd | Amplifier for the transmission of a wide frequency band including direct current |
DE743491C (en) * | 1937-12-24 | 1943-12-27 | Opta Radio Ag | Capacitor resistor-coupled amplifier with gain control |
DE846413C (en) * | 1939-05-10 | 1952-08-11 | Emi Ltd | Coupling circuit for broadband amplifier |
US2433378A (en) * | 1941-03-21 | 1947-12-30 | Standard Telephones Cables Ltd | Electrical oscillation generator |
US2688078A (en) * | 1946-02-21 | 1954-08-31 | Us Navy | Multivibrator |
DE1126448B (en) * | 1958-03-08 | 1962-03-29 | Fernseh Gmbh | Circuit arrangement for the transmission of voltages or currents in electronic amplifiers for wide frequency bands, in particular television amplifiers or the like. |
Also Published As
Publication number | Publication date |
---|---|
FR804804A (en) | 1936-11-03 |
DE757339C (en) | 1953-02-02 |
US2120823A (en) | 1938-06-14 |
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