Excerpt from the tube collection of Museum Roggenhofer. These images (tube photos) were uploaded to the respective tubes or valves by Museum Roggenhofer.
| 2N2219 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2221 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2222 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2369 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 2N2646 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2894 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 2N2904 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2905 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2907 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N2923 |
|
| General Electric Co. (GE); B... |
USA |
|
| 2N3053 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3054 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3055 |
|
| Common type Worldwide tube/s... |
ZZ |
|
| 2N3442 |
|
| RCA (RCA Victor Co. Inc.); N... |
USA |
|
| 2N3566 |
|
| Fairchild Semiconductor Inc.... |
USA |
|
| 2N3567 |
|
| Fairchild Semiconductor Inc.... |
USA |
|
| 2N3618 |
|
| Motorola Inc. (ex Galvin Mfg... |
USA |
|
| 2N3638 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3716 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3740 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3773 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3819 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3904 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N3906 |
|
| Common type USA tube/semicond. |
USA |
|
| 2N4032 |
|
| Intermetall Halbleiterwerk, ... |
D |
|
| 2N4101 |
|
| RCA (RCA Victor Co. Inc.); N... |
USA |
|
| 2N4250 |
|
| Fairchild Semiconductor Inc.... |
USA |
|
| 2N4347 |
|
| RCA (RCA Victor Co. Inc.); N... |
USA |
|
| 2N4444 |
|
| Motorola Inc. (ex Galvin Mfg... |
USA |
|
| 2N4858 |
|
| Common type USA tube/semicond. |
USA |
|
Museum Roggenhofer started his/her tube collection (valve collection) here on 01.May.2007.
[index-en]