Excerpt from the tube collection of Rudolf Osterkamp. These images (tube photos) were uploaded to the respective tubes or valves by Rudolf Osterkamp.
| E406N |
1928 |
| Philips; Eindhoven (tubes in... |
NL |
|
| C443 |
1928 |
| Philips; Eindhoven (tubes in... |
NL |
|
| A414K |
1928 |
| Philips; Eindhoven (tubes in... |
NL |
|
| UY227 |
1927 |
| Common type USA tube/semicond. |
USA |
|
| 80 |
1927 |
| Common type USA tube/semicond. |
USA |
|
| UX240 |
1927 |
| Common type USA tube/semicond. |
USA |
|
| 1823 |
1927 |
| Philips; Eindhoven (tubes in... |
NL |
|
| 26 |
1927 |
| Common type USA tube/semicond. |
USA |
|
| RRR245 |
1927 |
| Radio-Record - Röhrenmarke; ... |
NL |
|
| R656 |
1927 |
| Dario (tubes) - voir aussi L... |
F |
|
| R636 |
1927 |
| Dario (tubes) - voir aussi L... |
F |
|
| R44 |
1927 |
| Rectron GmbH; Berlin |
D |
|
| R22 |
1927 |
| Rectron GmbH; Berlin |
D |
|
| M300 |
1927 |
| Radio-Record - Röhrenmarke; ... |
NL |
|
| L410 |
1927 |
| Valvo GmbH, Radioröhrenfabri... |
D |
|
| DL15_deForest |
1927 ?? |
| DeForest-Tubes |
USA |
|
| A442 |
1927 |
| Philips; Eindhoven (tubes in... |
NL |
|
| A435 |
1927 |
| Philips; Eindhoven (tubes in... |
NL |
|
| Multivalve |
1926 |
| Emerson Radval Co.; New York... |
USA |
|
| 2HF |
1926 |
| Loewe-(Opta); Deutschland |
D |
|
| UX200A |
1926 |
| Common type USA tube/semicond. |
USA |
|
| 210HL_Cossor |
1926 |
| Cossor, A.C.; London |
GB |
|
| 6/100Amp |
1926 ? |
| Métal; France (tubes) |
F |
|
| VIRAA |
1926 |
| Vereenigde Industrieen (N.V.... |
NL |
|
| REN1104 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| RE154 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| RE064t |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| RE064 |
1926 |
| Telefunken Deutschland (TFK)... |
D |
|
| PM2 |
1926 |
| Mullard Radio Valve Co. Ltd.; |
GB |
|
| DE06_Nelson |
1926 |
| Nelson Electric Co. Ltd.; Lo... |
GB |
|
Rudolf Osterkamp started his/her tube collection (valve collection) here on 04.Aug.2008.
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