BE725227A - - Google Patents
Info
- Publication number
- BE725227A BE725227A BE725227DA BE725227A BE 725227 A BE725227 A BE 725227A BE 725227D A BE725227D A BE 725227DA BE 725227 A BE725227 A BE 725227A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
- H03G1/0029—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier using FETs
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/193—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68942567A | 1967-12-11 | 1967-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE725227A true BE725227A (xx) | 1969-05-16 |
Family
ID=24768410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE725227D BE725227A (xx) | 1967-12-11 | 1968-12-10 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3443240A (xx) |
| JP (1) | JPS4841383B1 (xx) |
| AT (1) | AT288489B (xx) |
| BE (1) | BE725227A (xx) |
| ES (1) | ES361236A1 (xx) |
| FR (1) | FR1594341A (xx) |
| GB (1) | GB1242859A (xx) |
| NL (1) | NL160127C (xx) |
| SE (1) | SE336009B (xx) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3525050A (en) * | 1968-10-14 | 1970-08-18 | Philips Corp | Circuit arrangement for amplifying electric signals |
| US3581123A (en) * | 1969-03-27 | 1971-05-25 | Gen Electric | Circuit for providing inductive impedance |
| CH504819A (de) * | 1970-07-10 | 1971-03-15 | Ibm | Abtasteinrichtung |
| US3879688A (en) * | 1972-06-21 | 1975-04-22 | Yutaka Hayashi | Method for gain control of field-effect transistor |
| DE2911514C2 (de) * | 1979-03-23 | 1982-07-15 | Texas Instruments Deutschland Gmbh, 8050 Freising | HF-Verstärkerschaltung |
| GB2117583B (en) * | 1982-03-31 | 1986-01-29 | Ferranti Plc | Gain control circuit |
| US5216383A (en) * | 1991-05-21 | 1993-06-01 | U.S. Philips Corporation | Controllable amplifier circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3404347A (en) * | 1966-11-03 | 1968-10-01 | Rca Corp | Gain controlled amplifier using multiple gate field-effect transistor as the active element thereof |
-
1967
- 1967-12-11 US US689425A patent/US3443240A/en not_active Expired - Lifetime
-
1968
- 1968-11-18 SE SE15627/68A patent/SE336009B/xx unknown
- 1968-12-09 ES ES361236A patent/ES361236A1/es not_active Expired
- 1968-12-10 BE BE725227D patent/BE725227A/xx unknown
- 1968-12-10 NL NL6817684.A patent/NL160127C/xx not_active IP Right Cessation
- 1968-12-11 FR FR1594341D patent/FR1594341A/fr not_active Expired
- 1968-12-11 GB GB58806/68A patent/GB1242859A/en not_active Expired
- 1968-12-11 AT AT1208668A patent/AT288489B/de not_active IP Right Cessation
- 1968-12-11 JP JP43090849A patent/JPS4841383B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AT288489B (de) | 1971-03-10 |
| NL160127C (nl) | 1979-09-17 |
| ES361236A1 (es) | 1970-08-16 |
| DE1813790B2 (de) | 1977-03-31 |
| JPS4841383B1 (xx) | 1973-12-06 |
| DE1813790A1 (de) | 1969-08-21 |
| NL160127B (nl) | 1979-04-17 |
| NL6817684A (xx) | 1969-06-13 |
| FR1594341A (xx) | 1970-06-01 |
| US3443240A (en) | 1969-05-06 |
| SE336009B (xx) | 1971-06-21 |
| GB1242859A (en) | 1971-08-18 |