BE640813A - - Google Patents
Info
- Publication number
- BE640813A BE640813A BE640813A BE640813A BE640813A BE 640813 A BE640813 A BE 640813A BE 640813 A BE640813 A BE 640813A BE 640813 A BE640813 A BE 640813A BE 640813 A BE640813 A BE 640813A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
- H03D9/06—Transference of modulation using distributed inductance and capacitance
- H03D9/0658—Transference of modulation using distributed inductance and capacitance by means of semiconductor devices having more than two electrodes
- H03D9/0666—Transference of modulation using distributed inductance and capacitance by means of semiconductor devices having more than two electrodes using bipolar transistors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US242121A US3252095A (en) | 1962-12-04 | 1962-12-04 | Multiband tunable circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE640813A true BE640813A (en:Method) | 1964-04-01 |
Family
ID=22913530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE640813A BE640813A (en:Method) | 1962-12-04 | 1963-12-04 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3252095A (en:Method) |
| BE (1) | BE640813A (en:Method) |
| GB (1) | GB1018730A (en:Method) |
| NL (1) | NL301280A (en:Method) |
| SE (1) | SE301176B (en:Method) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1020645A (en) * | 1963-11-06 | 1966-02-23 | Pye Ltd | Improvements in or relating to tuner units |
| DE1198423B (de) * | 1964-04-14 | 1965-08-12 | Telefunken Patent | Schaltung zur Erdung einer Transistorelektrode fuer hochfrequente elektrische Schwingungen in einer Abstimmeinrichtung |
| US3500253A (en) * | 1968-01-23 | 1970-03-10 | Jerrold Electronics Corp | Uhf directional mixer |
| ES359059A1 (es) * | 1968-10-11 | 1970-05-16 | Fagor Electrotecnica Sci | Sintonizador integrado electronicamente para t. v. |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2772355A (en) * | 1951-07-05 | 1956-11-27 | Polytechnic Res & Dev Co Inc | Wide range tuner |
| US2894225A (en) * | 1956-10-29 | 1959-07-07 | Jr James Elmer Myers | Tuning apparatus |
-
0
- NL NL301280D patent/NL301280A/xx unknown
-
1962
- 1962-11-19 GB GB45682/63A patent/GB1018730A/en not_active Expired
- 1962-12-04 US US242121A patent/US3252095A/en not_active Expired - Lifetime
-
1963
- 1963-12-03 SE SE13401/63A patent/SE301176B/xx unknown
- 1963-12-04 BE BE640813A patent/BE640813A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3252095A (en) | 1966-05-17 |
| NL301280A (en:Method) | |
| SE301176B (en:Method) | 1968-05-27 |
| GB1018730A (en) | 1966-02-02 |