 | |||
 | |||
| Biographical notes | |||
| | |||
| Chron. biographical | |||
| | |||
| Documents | |||
| |||
| History telegraph | |||
| History telephone | |||
| History radio | |||
| History TV | |||
| History comp. | |||
| Scientists index | |||
| Bibliography | |||
path
radio
|
|||
path
components
| |||
| | ||||
 |
Sir John Ambrose Fleming |
 | ||
| | ||||
Lancaster
29.November.1849- Sidmouth (Devonshire) 18.April.1945 | ||||
| 1904 Diode | ||||
Electrical engineer has
invented the first valve called thermionic diode. Scientific
Advisory of the Society of Telegraph wireless, Marconi. |
 | |||