GB597652A - Improvements in thermionic valve circuit arrangements - Google Patents
Improvements in thermionic valve circuit arrangementsInfo
- Publication number
- GB597652A GB597652A GB1032145A GB1032145A GB597652A GB 597652 A GB597652 A GB 597652A GB 1032145 A GB1032145 A GB 1032145A GB 1032145 A GB1032145 A GB 1032145A GB 597652 A GB597652 A GB 597652A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- grid
- cathode
- condenser
- circuit
- 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
- 230000010355 oscillation Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
- H03B5/26—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator
- H03B5/28—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator active element in amplifier being vacuum tube
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
597,652. Valve amplifying and generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and PARTINGTON, G. E. April 24, 1945, No. 10321. [Class 40 (v)] A valve circuit, for producing oscillations or amplifying selectively, comprises a network, consisting of a resistance R1 and condenser C1 in series with a parallel arrangement of condenser C2 and resistance R2, electromagnetically coupled to the anode-cathode circuit of the valve, the grid being connected to a point on resistance R2. The connections and couplings are such that at the frequencies concerned the grid and cathode potentials are in phase or the grid and anode potentials are in antiphase. The valve operates as a cathode follower, the transformer T having a step-up ratio, between the primary, carrying the cathode current and the secondary, sufficient to overcome the attenuation in the network. By employing a diode D and a resistance and condenser (at point X), the amplitude of the oscillations may be stabilised. A further resistance may be added in series with the network, Fig. 5 (not shown), across which a locking'signal may be applied. The grid may be biassed by a grid condenser and resistance or a cathode resistance, Figs 6 and 7 (not shown), and transformer T replaced by an auto-transformer. By adjusting the tap on resistance R2 so that the circuit is not quite oscillating, the circuit will amplify selectively frequencies near the frequency at which it would oscillate.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB597652A true GB597652A (en) | 1948-01-30 |
Family
ID=1698141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1032145A Expired GB597652A (en) | 1945-04-24 | Improvements in thermionic valve circuit arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB597652A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2690510A (en) * | 1946-03-29 | 1954-09-28 | Gordon D Forbes | Blocking oscillator circuits |
| US2712606A (en) * | 1949-10-07 | 1955-07-05 | Du Mont Allen B Lab Inc | Blocking tube oscillator |
-
1945
- 1945-04-24 GB GB1032145A patent/GB597652A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2690510A (en) * | 1946-03-29 | 1954-09-28 | Gordon D Forbes | Blocking oscillator circuits |
| US2712606A (en) * | 1949-10-07 | 1955-07-05 | Du Mont Allen B Lab Inc | Blocking tube oscillator |
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