BE501088A - - Google Patents
Info
- Publication number
- BE501088A BE501088A BE501088DA BE501088A BE 501088 A BE501088 A BE 501088A BE 501088D A BE501088D A BE 501088DA BE 501088 A BE501088 A BE 501088A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/38—Dc amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
- H03F3/40—Dc amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with tubes only
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US142814A US2724022A (en) | 1950-02-07 | 1950-02-07 | Fast-acting feedback amplifiers for high impedance sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE501088A true BE501088A (xx) |
Family
ID=22501390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE501088D BE501088A (xx) | 1950-02-07 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2724022A (xx) |
| BE (1) | BE501088A (xx) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3124743A (en) * | 1964-03-10 | H riseman | ||
| US3388332A (en) * | 1951-11-30 | 1968-06-11 | Navy Usa | Computer device for aircraft carrier approach system |
| US2846586A (en) * | 1955-05-18 | 1958-08-05 | Gen Electric | Drift compensator for direct-coupled amplifier |
| US2974288A (en) * | 1957-10-09 | 1961-03-07 | Hewlett Packard Co | D.-c. amplifier and filter therefor |
| US3047797A (en) * | 1958-07-23 | 1962-07-31 | Shell Oil Co | Measuring conductivity of liquids |
| US3084321A (en) * | 1958-09-29 | 1963-04-02 | Beckman Instruments Inc | Method of and apparatus for transferring analog signal voltages |
| US3100282A (en) * | 1958-10-29 | 1963-08-06 | Beckman Instruments Inc | Shielding amplifier circuit |
| US3259842A (en) * | 1959-08-19 | 1966-07-05 | Coulter Electronics | Particle analyzing device |
| US3095535A (en) * | 1960-11-22 | 1963-06-25 | Polarad Electronics Corp | Digital ph meter |
| US3183446A (en) * | 1962-03-15 | 1965-05-11 | Weston Instruments Inc | Electrical signal comparator |
| US3265979A (en) * | 1962-06-01 | 1966-08-09 | Coleman Instr Corp | Drift-free d. c. amplifier |
| US3350635A (en) * | 1963-04-01 | 1967-10-31 | Int Rectifier Corp | Solar cell and test circuit |
| US3320559A (en) * | 1965-05-17 | 1967-05-16 | Electro Scient Ind Inc | Electrical chopper utilizing a shielded reed switch |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2232211A (en) * | 1938-12-06 | 1941-02-18 | Nat Technical Lab | Automatic voltage and ph indicator |
| US2311977A (en) * | 1939-01-20 | 1943-02-23 | Edwin D Coleman | Ion activity measurement device |
| US2285482A (en) * | 1939-02-24 | 1942-06-09 | Leeds & Northrup Co | Method of and apparatus for measuring |
| US2372062A (en) * | 1941-01-06 | 1945-03-20 | Dorsman Cornelis | Device for measuring low direct voltages |
| US2281312A (en) * | 1941-02-25 | 1942-04-28 | Bell Telephone Labor Inc | Wave translation |
| US2282319A (en) * | 1941-02-28 | 1942-05-12 | Brush Dev Co | Leakage reducing means |
| US2367746A (en) * | 1942-09-10 | 1945-01-23 | Leeds & Northrup Co | Electrical measuring system |
| US2459730A (en) * | 1944-06-30 | 1949-01-18 | Leeds & Northrup Co | Measuring system with capacttor having characteristics of an infinite capacity |
| US2489272A (en) * | 1945-04-09 | 1949-11-29 | Howard L Daniels | Stabilized high gain amplifier |
| US2458632A (en) * | 1945-12-11 | 1949-01-11 | Parsons J Howard | Ionization chamber |
| US2490579A (en) * | 1946-07-12 | 1949-12-06 | Socony Vacuum Oil Co Inc | Direct-current measuring system |
| US2563062A (en) * | 1947-01-07 | 1951-08-07 | Leeds & Northrup Co | Electrostatic shield for ph electrodes |
| US2497129A (en) * | 1947-05-02 | 1950-02-14 | Perkin Elmer Corp | Radiation detecting apparatus |
| US2622192A (en) * | 1949-01-06 | 1952-12-16 | Leeds & Northrup Co | Measuring system with grid current suppressor |
-
0
- BE BE501088D patent/BE501088A/xx unknown
-
1950
- 1950-02-07 US US142814A patent/US2724022A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2724022A (en) | 1955-11-15 |