Extrait de la collection de lampes / semi-conducteurs de Marcello Astolfi. Ces images ont été chargées sur la page d'une lampe / semi-conducteur par Marcello Astolfi.
| M30C500 |
|
| Siemens (& Halske, -Schucker... |
D |
|
| MEM564C |
|
| Common type USA tube/semicond. |
USA |
|
|
| MJ3000 |
|
| Motorola Inc. (ex Galvin Mfg... |
USA |
|
| NE570 |
|
| Common type USA tube/semicond. |
USA |
|
| NE571 |
|
| Common type USA tube/semicond. |
USA |
|
| OA5 |
|
| Common type Europe tube/semi... |
EU |
|
| OA50 |
1951 ? |
| Philips; Eindhoven (tubes in... |
NL |
|
| OA70 |
1954 |
| Common type Europe tube/semi... |
EU |
|
| OA73 |
1954 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OA79 |
1956 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OA81 |
|
| Philips; Eindhoven (tubes in... |
NL |
|
| OA85 |
|
| Common type Europe tube/semi... |
EU |
|
| OA90 |
|
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OA91 |
|
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OA95 |
|
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OA160 |
|
| Telefunken Deutschland (TFK)... |
D |
|
| OA200 |
|
| Philips; Eindhoven (tubes in... |
NL |
|
| OA202 |
|
| Philips; Eindhoven (tubes in... |
NL |
|
| OA210 |
|
| Mullard Radio Valve Co. Ltd.; |
GB |
|
| OAZ205 |
|
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OAZ208 |
|
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OAZ211 |
|
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OAZ213 |
|
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OC26 |
|
| Mullard Radio Valve Co. Ltd.; |
GB |
|
| OC30 |
|
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| OC44 |
1957 |
| Common type Europe tube/semi... |
EU |
|
| OC45 |
|
| Common type Europe tube/semi... |
EU |
|
| OC71 |
|
| Common type Europe tube/semi... |
EU |
|
| OC74 |
|
| Valvo GmbH, Radioröhrenfabri... |
D |
|
