GB531639A - Improvements in or relating to piezo-electric crystal controlled oscillation generators - Google Patents
Improvements in or relating to piezo-electric crystal controlled oscillation generatorsInfo
- Publication number
- GB531639A GB531639A GB2034839A GB2034839A GB531639A GB 531639 A GB531639 A GB 531639A GB 2034839 A GB2034839 A GB 2034839A GB 2034839 A GB2034839 A GB 2034839A GB 531639 A GB531639 A GB 531639A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystal
- piezo
- relating
- electric crystal
- controlled oscillation
- 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
- 239000013078 crystal Substances 0.000 title abstract 5
- 230000010355 oscillation Effects 0.000 title 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
- H03B5/30—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
- Oscillators With Electromechanical Resonators (AREA)
Abstract
531,639. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and PARKER, G. P. July 12, 1939, No. 20348. [Class 40 (v)] A crystal-controlled oscillator of the cathode coupled type has its tuned circuit L in parallel with a series circuit comprising the crystal P and a balancing reactance C, therefor, the junction of the crystal and the reactance being connected to the grid of the valve. The cathode K is connected to the mid-point of the inductance in circuit L. The positions of the crystal P and condenser C may be interchanged, Fig. 2 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2034839A GB531639A (en) | 1939-07-12 | 1939-07-12 | Improvements in or relating to piezo-electric crystal controlled oscillation generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2034839A GB531639A (en) | 1939-07-12 | 1939-07-12 | Improvements in or relating to piezo-electric crystal controlled oscillation generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB531639A true GB531639A (en) | 1941-01-08 |
Family
ID=10144458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2034839A Expired GB531639A (en) | 1939-07-12 | 1939-07-12 | Improvements in or relating to piezo-electric crystal controlled oscillation generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB531639A (en) |
-
1939
- 1939-07-12 GB GB2034839A patent/GB531639A/en not_active Expired
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