GB338263A - Improvements in or relating to multiple generators - Google Patents
Improvements in or relating to multiple generatorsInfo
- Publication number
- GB338263A GB338263A GB27561/29A GB2756129A GB338263A GB 338263 A GB338263 A GB 338263A GB 27561/29 A GB27561/29 A GB 27561/29A GB 2756129 A GB2756129 A GB 2756129A GB 338263 A GB338263 A GB 338263A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- reaction
- tuned
- circuits
- grids
- 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
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
Abstract
338,263. Telefonaktiebolaget L. M. Ericsson. Oct. 8, 1928, [Convention date]. Thermionic generators.-A frequency-changing circuit comprises two valves 1, 1<1> with anodes 2, 2<1> in parallel and grids 3, 3<1>, fed by two fundamental frequencies w1, w2, in push-pull, and the reaction on the grids, caused by the loading of the anode circuit by circuits 7, 8 tuned to frequencies 2w1, 2w2, w1 + w2, w1-w2, is compensated or eliminated. The reaction is compensated by coils 9 coupled to the tuned circuits and connected between a grid-bias battery 6 and the halves of the impedance 11, 11' in the grid circuit. Alternatively the reaction is eliminated by the use of screened-grid valves. As shown the second fundamental frequency is obtained by coils 12, 12<1> coupled to one of the tuned circuits and each connected in series with half of the grid impedance. The grid-bias voltage is negative and equal to 1/Á of the constant anode potential.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE338263X | 1928-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB338263A true GB338263A (en) | 1930-11-20 |
Family
ID=20308294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27561/29A Expired GB338263A (en) | 1928-10-08 | 1929-09-10 | Improvements in or relating to multiple generators |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US1848507A (en) |
| BE (1) | BE364226A (en) |
| DE (1) | DE523192C (en) |
| FR (1) | FR682181A (en) |
| GB (1) | GB338263A (en) |
| NL (1) | NL31447C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL78602C (en) * | 1943-10-21 | 1955-06-22 | ||
| US2445690A (en) * | 1944-06-02 | 1948-07-20 | Patt Elavathur Sub Viswanathan | Electron oscillator |
| US2609509A (en) * | 1945-06-13 | 1952-09-02 | Bertram C Hill | Electrical testing apparatus |
| US2539826A (en) * | 1945-07-30 | 1951-01-30 | Thomas J George | Electronic musical instrument |
| BE532098A (en) * | 1953-10-16 | |||
| US2913670A (en) * | 1957-12-30 | 1959-11-17 | Edwin F Laine | Wide band regenerative frequency divider and multiplier |
| DE1086300B (en) * | 1958-12-17 | 1960-08-04 | Siemens Ag | Circuit arrangement for frequency division and multiplication |
| DE1168508B (en) * | 1960-08-17 | 1964-04-23 | Siemens Ag | Circuit arrangement for frequency division and multiplication |
-
0
- NL NL31447D patent/NL31447C/xx active
- US US1848507D patent/US1848507A/en not_active Expired - Lifetime
- BE BE364226D patent/BE364226A/xx unknown
-
1929
- 1929-02-23 DE DET36450D patent/DE523192C/en not_active Expired
- 1929-09-10 GB GB27561/29A patent/GB338263A/en not_active Expired
- 1929-09-23 FR FR682181D patent/FR682181A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL31447C (en) | |
| DE523192C (en) | 1931-05-01 |
| BE364226A (en) | |
| FR682181A (en) | 1930-05-23 |
| US1848507A (en) | 1932-03-08 |
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