FR767812A - - Google Patents
Info
- Publication number
- FR767812A FR767812A FR767812DA FR767812A FR 767812 A FR767812 A FR 767812A FR 767812D A FR767812D A FR 767812DA FR 767812 A FR767812 A FR 767812A
- Authority
- FR
- France
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
- H03D7/10—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
- H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
- H03L1/04—Constructional details for maintaining temperature constant
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electrotherapy Devices (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US654421A US2323250A (en) | 1933-01-31 | 1933-01-31 | Signaling system |
US417036XA | 1933-04-18 | 1933-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR767812A true FR767812A (xx) | 1934-07-24 |
Family
ID=31890686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR767812D Expired FR767812A (xx) | 1933-01-31 |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE401193A (xx) |
DE (1) | DE755065C (xx) |
FR (1) | FR767812A (xx) |
GB (3) | GB437726A (xx) |
NL (1) | NL64168C (xx) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE740693C (de) * | 1937-02-12 | 1943-10-27 | Philips Patentverwaltung | Elektronenroehre mit mindestens vier Elektroden zwischen Kathode und Anode, insbesondere Mischroehre |
DE742591C (de) * | 1937-02-13 | 1943-12-08 | Philips Patentverwaltung | Elektronenroehre, die ausser Kathode, wenigstens einem Steuergitter und Anode, wenigstens eine zwischen Kathode und einem Steuergitter liegende Beschleunigungselektrode hat |
DE744296C (de) * | 1937-12-07 | 1944-01-13 | Elek Citaets Ag | Elektronenroehre |
DE750155C (de) * | 1937-04-28 | 1944-12-18 | Rca Corp | Mischroehre mit einem inneren Steuergitter und einem aeusseren Oszillatorgitter |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL66625C (xx) * | 1944-11-03 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR668535A (fr) * | 1928-05-08 | 1929-11-04 | Etablissements Ducretet Soc D | Dispositif changeur de fréquence, notamment pour radiosignalisation |
FR670929A (fr) * | 1928-07-05 | 1929-12-06 | Thomson Houston Comp Francaise | Perfectionnements aux amplificateurs à changeur de fréquence |
FR673718A (fr) * | 1928-08-25 | 1930-01-18 | Radiomodulation par les lampes à faible capacité intérieure | |
FR669267A (fr) * | 1929-02-07 | 1929-11-14 | Perfectionnement aux montages régulateurs appliqués aux changeurs de fréquences et autres | |
FR670731A (fr) * | 1929-03-04 | 1929-12-04 | Radio Sonore Et Hippolyte Shap | Procédé et montages pour mise en oeuvre de la méthode de réception par modulation |
FR709196A (fr) * | 1930-04-11 | 1931-08-04 | Dispositif de poste à combinaisons multiples |
-
0
- NL NL64168D patent/NL64168C/xx active
- BE BE401193D patent/BE401193A/xx unknown
- FR FR767812D patent/FR767812A/fr not_active Expired
-
1934
- 1934-01-31 GB GB3277/34A patent/GB437726A/en not_active Expired
- 1934-01-31 GB GB21769/35A patent/GB437804A/en not_active Expired
- 1934-02-01 DE DER89799D patent/DE755065C/de not_active Expired
- 1934-04-18 GB GB11695/34A patent/GB417036A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE740693C (de) * | 1937-02-12 | 1943-10-27 | Philips Patentverwaltung | Elektronenroehre mit mindestens vier Elektroden zwischen Kathode und Anode, insbesondere Mischroehre |
DE742591C (de) * | 1937-02-13 | 1943-12-08 | Philips Patentverwaltung | Elektronenroehre, die ausser Kathode, wenigstens einem Steuergitter und Anode, wenigstens eine zwischen Kathode und einem Steuergitter liegende Beschleunigungselektrode hat |
DE750155C (de) * | 1937-04-28 | 1944-12-18 | Rca Corp | Mischroehre mit einem inneren Steuergitter und einem aeusseren Oszillatorgitter |
DE744296C (de) * | 1937-12-07 | 1944-01-13 | Elek Citaets Ag | Elektronenroehre |
Also Published As
Publication number | Publication date |
---|---|
DE755065C (de) | 1953-04-09 |
NL64168C (xx) | |
BE401193A (xx) | |
GB417036A (en) | 1934-09-26 |
GB437726A (en) | 1935-10-31 |
GB437804A (en) | 1935-10-31 |