Extrait de la collection de lampes / semi-conducteurs de Ottmar Rollmann. Ces images ont été chargées sur la page d'une lampe / semi-conducteur par Ottmar Rollmann.
| A409 |
1925 |
| Philips; Eindhoven (tubes in... |
NL |
|
| A415 |
1925 |
| Philips; Eindhoven (tubes in... |
NL |
|
| RE074 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| B442 |
1927 |
| Philips; Eindhoven (tubes in... |
NL |
|
| VT-132 |
1927 |
| Common type USA tube/semicond. |
USA |
|
| VT-133 |
1927 |
| Common type USA tube/semicond. |
USA |
|
| VT-134 |
1927 |
| Common type USA tube/semicond. |
USA |
|
| 506 |
1927 |
| Philips; Eindhoven (tubes in... |
NL |
|
| 80 |
1927 |
| Common type USA tube/semicond. |
USA |
|
| RES164 |
1928 |
| Telefunken Deutschland (TFK)... |
D |
|
| VT-4C |
1929 ? |
| Common type USA tube/semicond. |
USA |
|
| 24A |
1929 |
| Common type USA tube/semicond. |
USA |
|
| 211 |
1929 ? |
| Common type USA tube/semicond. |
USA |
|
| 30 |
1930 |
| Common type USA tube/semicond. |
USA |
|
| 32 |
1930 |
| Common type USA tube/semicond. |
USA |
|
| E445 |
1931 |
| Philips; Eindhoven (tubes in... |
NL |
|
| E452T |
1931 |
| Philips; Eindhoven (tubes in... |
NL |
|
| RGN4004 |
1931 |
| Telefunken Deutschland (TFK)... |
D |
|
| 55 |
1931 |
| Common type USA tube/semicond. |
USA |
|
| E453 |
1932 |
| Philips; Eindhoven (tubes in... |
NL |
|
| RGN1064 |
1932 |
| Telefunken Deutschland (TFK)... |
D |
|
| 42 |
1932 |
| Common type USA tube/semicond. |
USA |
|
| 56 |
1932 |
| Common type USA tube/semicond. |
USA |
|
| 43 |
1932 |
| Common type USA tube/semicond. |
USA |
|
| E443H |
1933 |
| Philips; Eindhoven (tubes in... |
NL |
|
| E444 |
1933 |
| Philips; Eindhoven (tubes in... |
NL |
|
| 6A7 |
1933 |
| Common type USA tube/semicond. |
USA |
|
| 6D6 |
1933 |
| Common type USA tube/semicond. |
USA |
|
| 75 |
1933 |
| Common type USA tube/semicond. |
USA |
|
| 77 |
1933 |
| Common type USA tube/semicond. |
USA |
|
