NL68724C - - Google Patents
Info
- Publication number
- NL68724C NL68724C NL68724DA NL68724C NL 68724 C NL68724 C NL 68724C NL 68724D A NL68724D A NL 68724DA NL 68724 C NL68724 C NL 68724C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
- H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/002—Gyrators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0153—Electrical filters; Controlling thereof
- H03H7/0161—Bandpass filters
- H03H7/0169—Intermediate frequency filters
- H03H7/0184—Intermediate frequency filters with ferromagnetic core
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL645905X | 1947-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL68724C true NL68724C (pt) |
Family
ID=19791923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL68724D NL68724C (pt) | 1947-04-29 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2647239A (pt) |
| BE (1) | BE482214A (pt) |
| FR (1) | FR965369A (pt) |
| GB (1) | GB645905A (pt) |
| NL (1) | NL68724C (pt) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1066294B (de) * | 1951-03-01 | 1959-10-01 | N. V. Philips' Gloeilamkenfabrieken, Eindhoven (Niederlande) | Vierpol-Netzwerk zur Verbindung der Ausgangselektroden einer Verstärkerröhre mit den Eimgangselektroden der nachfolgenden Verstärkerröhre |
| US2794864A (en) * | 1952-08-01 | 1957-06-04 | Bell Telephone Labor Inc | Nonreciprocal circuits employing negative resistance elements |
| NL178570B (nl) * | 1952-08-01 | Mitsubishi Heavy Ind Ltd | Werkwijze en inrichting voor het vervaardigen van gietvormen door middel van vacuum. | |
| US2885492A (en) * | 1952-08-30 | 1959-05-05 | Bell Telephone Labor Inc | Repeater systems employing non-reciprocal coupling devices |
| US2845595A (en) * | 1952-12-06 | 1958-07-29 | Gen Electric | Apparatus for measuring electrical quantities |
| US2802068A (en) * | 1953-05-11 | 1957-08-06 | Robert H Harwood | System of impedance matching utilizing grounded-grid amplifier termination |
| US2849642A (en) * | 1953-06-17 | 1958-08-26 | Bell Telephone Labor Inc | Traveling wave amplifier |
| US2788396A (en) * | 1953-06-18 | 1957-04-09 | Bell Telephone Labor Inc | Balancing arrangement |
| US2944212A (en) * | 1953-07-06 | 1960-07-05 | Varian Associates | Gyromagnetic resonance apparatus |
| US2894209A (en) * | 1953-07-13 | 1959-07-07 | Varian Associates | Gyromagnetic resonance apparatus |
| US2811697A (en) * | 1953-09-16 | 1957-10-29 | Bell Telephone Labor Inc | Magnetoelectric induction devices |
| US2887665A (en) * | 1953-12-31 | 1959-05-19 | Bell Telephone Labor Inc | High frequency isolator |
| US2873370A (en) * | 1955-08-15 | 1959-02-10 | Levinthal Electronics Products | Microwave pulse generator |
| NL212080A (pt) * | 1956-11-09 | |||
| US2868980A (en) * | 1956-12-13 | 1959-01-13 | Bell Telephone Labor Inc | Frequency changer and wave amplifier |
| US3010085A (en) * | 1958-11-17 | 1961-11-21 | Bell Telephone Labor Inc | Isolators in lumped constant systems |
| US3047821A (en) * | 1960-12-27 | 1962-07-31 | Aircraft Armaments Inc | Isolator using hall effect gyrator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1822129A (en) * | 1926-07-09 | 1931-09-08 | Invex Corp | System and apparatus employing the hall effect |
| US1948209A (en) * | 1931-10-05 | 1934-02-20 | Fichandler Carl | Magnetoresistive system and apparatus |
| US2383475A (en) * | 1942-07-18 | 1945-08-28 | Standard Telephones Cables Ltd | Transformer |
| US2379168A (en) * | 1942-08-06 | 1945-06-26 | Westinghouse Electric Corp | Thermionic tube circuits |
| FR970066A (pt) * | 1947-08-16 | 1950-12-29 |
-
0
- FR FR965369D patent/FR965369A/fr not_active Expired
- NL NL68724D patent/NL68724C/xx active
- BE BE482214D patent/BE482214A/xx unknown
-
1948
- 1948-03-06 US US13506A patent/US2647239A/en not_active Expired - Lifetime
- 1948-04-26 GB GB11455/48A patent/GB645905A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB645905A (en) | 1950-11-08 |
| US2647239A (en) | 1953-07-28 |
| FR965369A (pt) | 1950-09-11 |
| BE482214A (pt) |