GB595200A - Stabilised harmonic electronic oscillator - Google Patents
Stabilised harmonic electronic oscillatorInfo
- Publication number
- GB595200A GB595200A GB1358/45A GB135845A GB595200A GB 595200 A GB595200 A GB 595200A GB 1358/45 A GB1358/45 A GB 1358/45A GB 135845 A GB135845 A GB 135845A GB 595200 A GB595200 A GB 595200A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pulse
- capacitor
- circuit
- oscillator
- 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
- 239000003990 capacitor Substances 0.000 abstract 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000005284 excitation 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
- 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
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
- H03B19/06—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes
- H03B19/08—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a discharge device
- H03B19/10—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a discharge device using multiplication only
Landscapes
- Electrotherapy Devices (AREA)
Abstract
595,200. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 16, 1945, No. 1358. Convention date, May 15, 1943. [Class 40 (v)] In a frequency multiplying circuit a gasfilled valve generates pulses under the control of a fundamental frequency, the pulses being applied to synchronize an oscillator operating at a harmonic frequency, the gas-filled valve being extinguished after an interval less than the half period of the harmonic frequency. The fundamental frequency, applied to the grid of gas-filled valve 1 causes it to fire to generate a positive pulse on the cathode, the pulse being terminated when capacitor 11 discharges to the ionizing potential of valve 1. The positive pulse is applied over a blocking condenser to the screen grid of the oscillator valve 12, the associated circuit 21, 22 being tuned to a harmonic of the fundamental frequency. The cathode of valve 1 is positively biassed over resistors 7a, 27 and the recharging time of capacitor 11 may be varied by adjusting resistor 5. In a modification, Fig. 3 (not shown), the pulse from valve 1 is applied to the grid of valve 12, the tuned circuit being coupled to the screen grid over a capacitor shunted by a resistor. The oscillator stage 12 may comprise two valves in push-pull and the pulse excitation may be derived from the anode circuit of valve 1 and applied to the cathode circuit of the oscillator. Alternatively, the pulse may be generated across an impedance in series with capacitor 11.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US595200XA | 1943-05-15 | 1943-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB595200A true GB595200A (en) | 1947-11-28 |
Family
ID=22023492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1358/45A Expired GB595200A (en) | 1943-05-15 | 1945-01-16 | Stabilised harmonic electronic oscillator |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB595200A (en) |
-
1945
- 1945-01-16 GB GB1358/45A patent/GB595200A/en not_active Expired
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