BE543553A - - Google Patents
Info
- Publication number
- BE543553A BE543553A BE543553DA BE543553A BE 543553 A BE543553 A BE 543553A BE 543553D A BE543553D A BE 543553DA BE 543553 A BE543553 A BE 543553A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L5/00—Automatic control of voltage, current, or power
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/46—Volume control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
- H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Multimedia (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Amplifiers (AREA)
- Electrophonic Musical Instruments (AREA)
- Toys (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL337573X | 1954-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE543553A true BE543553A (en) |
Family
ID=19784593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE543553D BE543553A (en) | 1954-12-13 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS335064B1 (en) |
| BE (1) | BE543553A (en) |
| CH (1) | CH337573A (en) |
| DE (1) | DE1046100B (en) |
| FR (1) | FR1144663A (en) |
| GB (1) | GB828688A (en) |
| NL (2) | NL107295C (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB697851A (en) * | 1950-06-06 | 1953-09-30 | British Thomson Houston Co Ltd | Improvements relating to the utilisation of the photo-electric effect in semi-conductors |
-
0
- NL NL193174D patent/NL193174A/xx unknown
- NL NL107295D patent/NL107295C/xx active
- BE BE543553D patent/BE543553A/xx unknown
-
1955
- 1955-12-09 DE DEN11575A patent/DE1046100B/en active Pending
- 1955-12-09 GB GB35401/55A patent/GB828688A/en not_active Expired
- 1955-12-10 JP JP3210055A patent/JPS335064B1/ja active Pending
- 1955-12-12 FR FR1144663D patent/FR1144663A/en not_active Expired
- 1955-12-12 CH CH337573D patent/CH337573A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB828688A (en) | 1960-02-24 |
| NL193174A (en) | |
| NL107295C (en) | |
| CH337573A (en) | 1959-04-15 |
| DE1046100B (en) | 1958-12-11 |
| FR1144663A (en) | 1957-10-16 |
| JPS335064B1 (en) | 1968-07-08 |