GB415804A - Improvements in or relating to thermionic oscillation generators - Google Patents
Improvements in or relating to thermionic oscillation generatorsInfo
- Publication number
- GB415804A GB415804A GB670933A GB670933A GB415804A GB 415804 A GB415804 A GB 415804A GB 670933 A GB670933 A GB 670933A GB 670933 A GB670933 A GB 670933A GB 415804 A GB415804 A GB 415804A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- circuit
- grid
- crystal
- circuits
- 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 title abstract 3
- 239000013078 crystal Substances 0.000 abstract 4
- 238000010079 rubber tapping Methods 0.000 abstract 2
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
415,804. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and WASSELL, H. J. H., 120, Mildmay Road, Chelmsford. March 6, 1933, No. 6709. [Class 40 (v).] A generator comprises an oscillation valve V1 whose output includes a parallel tuned circuit Z 1 from a tapping on which energy is fed over a piezoelectric crystal Cr to a reaction valve V2 whose anode circuit is connected to the grid of valve VI. Preferably a condenser C1 is in series with the crystal Cr, and a condenser C2 connects the anode of valve V2 to the grid of valve VI. The output circuit of valve V2 comprises a tuned circuit Z2 while the oscillations are taken off from a resistance Z3. The high tension source is connected to a tapping on the circuit Z 1 and grid bias is supplied over leads 1, 2. Automatic grid bias may alternatively be utilized, Fig. 2 (not shown). The circuits Z1, Z2 may be tuned to the crystal frequency, or a harmonic of the crystal frequency may be produced by suitably adjusting the circuits Z1, Z2, and setting the reaction valve V2 to work on a suitable point of its characteristic. Specification 397,007 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB670933A GB415804A (en) | 1933-03-06 | 1933-03-06 | Improvements in or relating to thermionic oscillation generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB670933A GB415804A (en) | 1933-03-06 | 1933-03-06 | Improvements in or relating to thermionic oscillation generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB415804A true GB415804A (en) | 1934-09-06 |
Family
ID=9819341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB670933A Expired GB415804A (en) | 1933-03-06 | 1933-03-06 | Improvements in or relating to thermionic oscillation generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB415804A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417522A (en) * | 1944-03-16 | 1947-03-18 | Rca Corp | Multivibrator circuit |
| US2517550A (en) * | 1944-09-15 | 1950-08-08 | Int Standard Electric Corp | Electrical multivibrator circuits |
| US2639385A (en) * | 1947-09-05 | 1953-05-19 | Bell Telephone Labor Inc | Alternating wave generator |
-
1933
- 1933-03-06 GB GB670933A patent/GB415804A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417522A (en) * | 1944-03-16 | 1947-03-18 | Rca Corp | Multivibrator circuit |
| US2517550A (en) * | 1944-09-15 | 1950-08-08 | Int Standard Electric Corp | Electrical multivibrator circuits |
| US2639385A (en) * | 1947-09-05 | 1953-05-19 | Bell Telephone Labor Inc | Alternating wave generator |
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