Extrait de la collection de lampes / semi-conducteurs de Peter Pfeiffer. Ces images ont été chargées sur la page d'une lampe / semi-conducteur par Peter Pfeiffer.
| RGN1054 |
1929 |
| Telefunken Deutschland (TFK)... |
D |
|
| RO4206 |
1929 |
| Visseaux / Télévisso; Lyon /... |
F |
|
| W4080 |
1929 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| 4NG |
1929 |
| Loewe-(Opta); Deutschland |
D |
|
| 24A |
1929 |
| Common type USA tube/semicond. |
USA |
|
| H407spez |
1929 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| 24 |
1929 |
| Common type USA tube/semicond. |
USA |
|
| G425 |
1930 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| H410D |
1930 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| L416D |
1930 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| RES664d |
1930 |
| Telefunken Deutschland (TFK)... |
D |
|
| 32 |
1930 |
| Common type USA tube/semicond. |
USA |
|
| 36 |
1930 |
| Common type USA tube/semicond. |
USA |
|
| 38 |
1930 |
| RCA (RCA Victor Co. Inc.); N... |
USA |
|
| A2118 |
1931 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| B228 |
1931 |
| Philips; Eindhoven (tubes in... |
NL |
|
| E452T |
1931 |
| Philips; Eindhoven (tubes in... |
NL |
|
| L2318D |
1931 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| RENS1264 |
1931 |
| Telefunken Deutschland (TFK)... |
D |
|
| RENS1820 |
1931 |
| Telefunken Deutschland (TFK)... |
D |
|
| RENS1823d |
1931 |
| Telefunken Deutschland (TFK)... |
D |
|
| RES174d |
1931 |
| Telefunken Deutschland (TFK)... |
D |
|
| RES374 |
1931 |
| Telefunken Deutschland (TFK)... |
D |
|
| 47 |
1931 |
| Common type USA tube/semicond. |
USA |
|
| RENS1214 |
1931 |
| Telefunken Deutschland (TFK)... |
D |
|
| 57 |
1931 |
| Common type USA tube/semicond. |
USA |
|
| 58 |
1931 |
| Common type USA tube/semicond. |
USA |
|
| C453 |
1932 |
| Philips; Eindhoven (tubes in... |
NL |
|
| E455 |
1932 |
| Philips; Eindhoven (tubes in... |
NL |
|
| E499 |
1932 ? |
| Philips; Eindhoven (tubes in... |
NL |
|
