Extrait de la collection de lampes / semi-conducteurs de Rudolf Osterkamp. Ces images ont été chargées sur la page d'une lampe / semi-conducteur par Rudolf Osterkamp.
| RM |
1925 ? |
| Métal; France (tubes) |
F |
|
| SX201A |
1925 |
| Sylvania (Hygrade, GTE, Nilc... |
USA |
|
| 373 |
1925 |
| Philips; Eindhoven (tubes in... |
NL |
|
| 1018 |
1925 |
| Philips; Eindhoven (tubes in... |
NL |
|
| W1_Cossor |
1925 |
| Cossor, A.C.; London |
GB |
|
| B_CeCo |
1925 |
| CeCo (tubes), C.E. Mfg. Co. ... |
USA |
|
| W3_Cossor |
1925 |
| Cossor, A.C.; London |
GB |
|
| CX301A |
1925 |
| Cunningham Inc., E.T.; Harr... |
USA |
|
| 201A |
1925 |
| Common type USA tube/semicond. |
USA |
|
| A_Nelson |
1926 |
| Nelson Electric Co. Ltd.; Lo... |
GB |
|
| A425 |
1926 |
| Philips; Eindhoven (tubes in... |
NL |
|
| DE06_Nelson |
1926 |
| Nelson Electric Co. Ltd.; Lo... |
GB |
|
| PM2 |
1926 |
| Mullard Radio Valve Co. Ltd.; |
GB |
|
| RE064 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| RE064t |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| RE154 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| REN1104 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| VIRAA |
1926 |
| Vereenigde Industrieen (N.V.... |
NL |
|
| 6/100Amp |
1926 ? |
| Métal; France (tubes) |
F |
|
| 210HL_Cossor |
1926 |
| Cossor, A.C.; London |
GB |
|
| UX200A |
1926 |
| Common type USA tube/semicond. |
USA |
|
| 2HF |
1926 |
| Loewe-(Opta); Deutschland |
D |
|
| Multivalve |
1926 |
| Emerson Radval Co.; New York... |
USA |
|
| A435 |
1927 |
| Philips; Eindhoven (tubes in... |
NL |
|
| A442 |
1927 |
| Philips; Eindhoven (tubes in... |
NL |
|
| DL15_deForest |
1927 ?? |
| DeForest-Tubes |
USA |
|
| L410 |
1927 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| M300 |
1927 |
| Radio-Record - Röhrenmarke; ... |
NL |
|
| R22 |
1927 |
| Rectron GmbH; Berlin |
D |
|
| R44 |
1927 |
| Rectron GmbH; Berlin |
D |
|
