NL59576C - - Google Patents
Info
- Publication number
- NL59576C NL59576C NL87583A NL87583A NL59576C NL 59576 C NL59576 C NL 59576C NL 87583 A NL87583 A NL 87583A NL 87583 A NL87583 A NL 87583A NL 59576 C NL59576 C NL 59576C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/06—Electrode arrangements
- H01J43/08—Cathode arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/28—Vessels, e.g. wall of the tube; Windows; Screens; Suppressing undesired discharges or currents
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electron Tubes For Measurement (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF4463D DE889657C (en) | 1937-05-04 | 1937-05-04 | Secondary electron amplifier |
DEF4678D DE901569C (en) | 1937-05-04 | 1938-02-19 | Photocell with secondary electron amplifier |
GB13174/38A GB514335A (en) | 1937-05-04 | 1938-05-03 | Improvements in or relating to electron multipliers |
Publications (1)
Publication Number | Publication Date |
---|---|
NL59576C true NL59576C (en) | 1947-07-15 |
Family
ID=32073732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL87583A NL59576C (en) | 1937-05-04 | 1938-04-28 |
Country Status (6)
Country | Link |
---|---|
US (1) | US2216267A (en) |
BE (1) | BE427837A (en) |
DE (3) | DE889657C (en) |
FR (1) | FR837484A (en) |
GB (1) | GB514335A (en) |
NL (1) | NL59576C (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE750071C (en) * | 1939-06-21 | 1944-12-12 | Process for the production of electron multipliers with electrodes of different secondary emissivity | |
GB745811A (en) * | 1951-03-27 | 1956-03-07 | Emi Ltd | Improvements relating to electron multipliers |
DE1087721B (en) * | 1953-11-09 | 1960-08-25 | Siemens Ag Albis | Image converter tube |
US2983845A (en) * | 1959-05-07 | 1961-05-09 | Bendix Corp | Electron multiplier spurious noise baffle |
US4006376A (en) * | 1975-02-28 | 1977-02-01 | Rca Corporation | Phototube having improved electron collection efficiency |
-
1937
- 1937-05-04 DE DEF4463D patent/DE889657C/en not_active Expired
-
1938
- 1938-02-19 DE DEF4678D patent/DE901569C/en not_active Expired
- 1938-04-28 NL NL87583A patent/NL59576C/xx active
- 1938-04-30 BE BE427837D patent/BE427837A/xx unknown
- 1938-05-03 FR FR837484D patent/FR837484A/en not_active Expired
- 1938-05-03 GB GB13174/38A patent/GB514335A/en not_active Expired
- 1938-05-03 US US205842A patent/US2216267A/en not_active Expired - Lifetime
-
1939
- 1939-10-29 DE DEF4516D patent/DE907097C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE907097C (en) | 1954-03-22 |
DE889657C (en) | 1953-09-14 |
BE427837A (en) | 1938-05-31 |
GB514335A (en) | 1939-11-06 |
DE901569C (en) | 1954-01-11 |
FR837484A (en) | 1939-02-10 |
US2216267A (en) | 1940-10-01 |