GB316575A - High-frequency generator circuit - Google Patents
High-frequency generator circuitInfo
- Publication number
- GB316575A GB316575A GB21081/29A GB2108129A GB316575A GB 316575 A GB316575 A GB 316575A GB 21081/29 A GB21081/29 A GB 21081/29A GB 2108129 A GB2108129 A GB 2108129A GB 316575 A GB316575 A GB 316575A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grids
- crystal
- anodes
- pair
- 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
- 239000013078 crystal Substances 0.000 abstract 4
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000003534 oscillatory effect Effects 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
- H03B5/30—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
316,575. Wired Radio, Inc., (Assignees of Harrison, J. R.). July 31, 1928, [Convention date]. Thermionic generators. - A pair of four-electrode valves are connected in push-pull relation, and the oscillation frequency is determined by a piezo-electric element associated with one or more pairs of electrodes. As shown in Fig. 2, the inner grids 4, 8 are kept at a positive potential and operate as space-change grids, whilst the outer grids 6, 10 are connected to opposed plates A, B of the crystal element 16. The valve anodes 5, 9 are connected to a second pair of opposed plates C, D on the crystal 16. A biasing battery 18 and chokes or resistances 11, 12 are provided in the outer grid circuits, whilst the anodes are connected through the oscillatory circuit 14, 15 and a choke 13 to the battery 19. The distance d between the pairs of crystal plates may be varied for adjusting the phase relation between the outer-grid circuit and the anode circuit. The inner grids may be used instead of the outer grids for the input or control circuit, and the outer grids kept at a steady positive potential. In a modification, the second pair of crystal plates C, D, and their connections to the anodes, are omitted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US316575XA | 1928-07-31 | 1928-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB316575A true GB316575A (en) | 1930-07-31 |
Family
ID=21860711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21081/29A Expired GB316575A (en) | 1928-07-31 | 1929-07-09 | High-frequency generator circuit |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB316575A (en) |
-
1929
- 1929-07-09 GB GB21081/29A patent/GB316575A/en not_active Expired
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