NL47700C - - Google Patents
Info
- Publication number
- NL47700C NL47700C NL47700DA NL47700C NL 47700 C NL47700 C NL 47700C NL 47700D A NL47700D A NL 47700DA NL 47700 C NL47700 C NL 47700C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/52—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using discharge tubes in series with the load as final control devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
- H01J43/025—Circuits therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Cold Cathode And The Manufacture (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL202088X | 1937-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL47700C true NL47700C (no) |
Family
ID=19778390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL47700D NL47700C (no) | 1937-03-10 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2235190A (no) |
| BE (1) | BE426821A (no) |
| CH (1) | CH202088A (no) |
| FR (1) | FR835012A (no) |
| GB (1) | GB498577A (no) |
| NL (1) | NL47700C (no) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE449722A (no) * | 1942-03-13 | |||
| BE469303A (no) * | 1945-10-01 | |||
| US2541019A (en) * | 1946-07-27 | 1951-02-13 | Fed Telecomm Lab Inc | Demodulator system |
| US2598326A (en) * | 1946-11-20 | 1952-05-27 | Emi Ltd | Negative feedback amplifier |
| US2617750A (en) * | 1950-01-10 | 1952-11-11 | Interchem Corp | Decorative and protective sheet |
| BE505422A (no) * | 1950-08-25 | |||
| US2859345A (en) * | 1953-03-12 | 1958-11-04 | Rca Corp | Electrically tunable oscillator |
| US3027517A (en) * | 1958-08-21 | 1962-03-27 | Edgerton Germeshausen And Grie | Blocking oscillator system |
-
0
- BE BE426821D patent/BE426821A/xx unknown
- NL NL47700D patent/NL47700C/xx active
-
1938
- 1938-03-07 GB GB7155/38A patent/GB498577A/en not_active Expired
- 1938-03-08 CH CH202088D patent/CH202088A/de unknown
- 1938-03-09 US US194788A patent/US2235190A/en not_active Expired - Lifetime
- 1938-03-09 FR FR835012D patent/FR835012A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB498577A (en) | 1939-01-10 |
| US2235190A (en) | 1941-03-18 |
| FR835012A (fr) | 1938-12-09 |
| BE426821A (no) | |
| CH202088A (de) | 1938-12-31 |