Excerpt from the tube collection of Rudolf Osterkamp. These images (tube photos) were uploaded to the respective tubes or valves by Rudolf Osterkamp.
| 1N5341 |
|
| Common type USA tube/semicond. |
USA |
|
| 1N5765 |
|
| Common type USA tube/semicond. |
USA |
|
| 1N5818 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 1N5820 |
|
| Common type USA tube/semicond. |
USA |
|
| 1R5 |
1940 |
| Common type Worldwide tube/s... |
ZZ |
|
| 1S85 |
|
| Hitachi Ltd.; Tokyo |
J |
|
| 1S103 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 1S188 |
|
| Sanyo Electric Co. Ltd.; Mor... |
J |
|
| 1T4 |
1940 |
| Common type USA tube/semicond. |
USA |
|
| 1U4 |
|
| Common type USA tube/semicond. |
USA |
|
| 1Б5-9 |
|
| Common type USSR (SU) tube/s... |
SU |
|
| 2A3 |
1933 |
| Common type USA tube/semicond. |
USA |
|
| 2AA113 |
|
| Tungsram; Budapest (see also... |
H |
|
| 2В400 |
|
| Common type USSR (SU) tube/s... |
SU |
|
| 2C18 |
|
| Philips; Eindhoven (tubes in... |
NL |
|
| 2C415 |
|
| ATES; L’Aquila, Milano, Napo... |
I |
|
| 2D4 |
|
| Mullard Radio Valve Co. Ltd.; |
GB |
|
| 2D21 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 2D21W |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 2E26 |
|
| Common type USA tube/semicond. |
USA |
|
| 2G374 |
|
| Common type Great Britain tu... |
GB |
|
| 2G386 |
|
| Common type Great Britain tu... |
GB |
|
| 2HF |
1926 |
| Loewe-(Opta); Deutschland |
D |
|
| 2K45 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N157 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N174 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N216 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N297 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N376 |
|
| RCA (RCA Victor Co. Inc.); N... |
USA |
|
| 2N404 |
|
| Common type USA tube/semicond. |
USA |
|
Rudolf Osterkamp started his/her tube collection (valve collection) here on 04.Aug.2008.
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