Excerpt from the tube collection of Rudolf Osterkamp. These images (tube photos) were uploaded to the respective tubes or valves by Rudolf Osterkamp.
| 2N424 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N457 |
|
| Texas Instruments, Dallas |
USA |
|
| 2N511 |
|
| Texas Instruments, Dallas |
USA |
|
| 2N526 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N527 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 2N553 |
|
| Delco - tubes; USA |
USA |
|
| 2N697 |
|
| Fairchild Semiconductor Inc.... |
USA |
|
| 2N708 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 2N1073 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N1132 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N1360 |
|
| Motorola Inc. (ex Galvin Mfg... |
USA |
|
| 2N1362 |
|
| Motorola Inc. (ex Galvin Mfg... |
USA |
|
| 2N1519 |
|
| Delco - tubes; USA |
USA |
|
| 2N1534 |
|
| Motorola Inc. (ex Galvin Mfg... |
USA |
|
| 2N1556 |
|
| Motorola Inc. (ex Galvin Mfg... |
USA |
|
| 2N1557 |
|
| Motorola Inc. (ex Galvin Mfg... |
USA |
|
| 2N1701 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N1842 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N1899 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 2N2079 |
|
| Motorola Inc. (ex Galvin Mfg... |
USA |
|
| 2N2102 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2239 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2288 |
|
| Bendix, Red Bank Division, E... |
USA |
|
| 2N2646 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2904 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2915 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2919 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2925 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3300 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3375 |
|
| Common type Worldwide tube/s... |
ZZ |
|
Rudolf Osterkamp started his/her tube collection (valve collection) here on 04.Aug.2008.
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