GB603336A - Improvements relating to vacuum tube harmonic-frequency generators - Google Patents
Improvements relating to vacuum tube harmonic-frequency generatorsInfo
- Publication number
- GB603336A GB603336A GB32402/45A GB3240245A GB603336A GB 603336 A GB603336 A GB 603336A GB 32402/45 A GB32402/45 A GB 32402/45A GB 3240245 A GB3240245 A GB 3240245A GB 603336 A GB603336 A GB 603336A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- cathode
- harmonic frequency
- frequency
- coil
- 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
- 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
-
- 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
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
603,336. Valve generating circuits. PHILCO RADIO & TELEVISION CORPORATION. Nov. 30, 1945, No. 32402. Convention date, Nov. 30, 1944. [Class 40 (vi)] In a thermionic valve harmonic frequency wave generator, a fundamental frequencydetermining network is associated with the grid-cathode circuit of the valve, the output circuit is tuned to the harmonic frequency, and the grid-cathode path includes a coil or parallel circuit resonant at the harmonic frequency. In Fig. 2, the fundamental frequency oscillator circuit comprises a Colpitts' circuit associated with the cathode, control and screen grids of valve 10. The output circuit 25, tuned to the harmonic frequency is electron coupled to the oscillator circuit. To increase grid-cathode impedance at the harmonic frequency and thus also increase the output voltage, a coil 26 which is self-resonant at the harmonic frequency, is included in the gridcathode path ; the coil has negligible effect at the fundamental frequency. In addition, coil 27, which is self-resonant at the fundamental frequency, is included in the cathode circuit to provide a high cathode impedance at the fundamental frequency and a low impedance at the harmonic frequency. A modification (Fig. 3, not shown), is described showing a similar circuit arrangement as applied to a Hartley type of oscillator circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US603336XA | 1944-11-30 | 1944-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB603336A true GB603336A (en) | 1948-06-14 |
Family
ID=22028846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32402/45A Expired GB603336A (en) | 1944-11-30 | 1945-11-30 | Improvements relating to vacuum tube harmonic-frequency generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB603336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921745A (en) * | 2019-04-02 | 2019-06-21 | 无锡旭洲智能科技有限公司 | Side output type radio frequency resonant generator and pesticide-germicide device |
-
1945
- 1945-11-30 GB GB32402/45A patent/GB603336A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921745A (en) * | 2019-04-02 | 2019-06-21 | 无锡旭洲智能科技有限公司 | Side output type radio frequency resonant generator and pesticide-germicide device |
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