Excerpt from the tube collection of Museum Roggenhofer. These images (tube photos) were uploaded to the respective tubes or valves by Museum Roggenhofer.
| 2SA671 |
|
| Hitachi Ltd.; Tokyo |
J |
|
| 2SA673 |
|
| Hitachi Ltd.; Tokyo |
J |
|
| 2SA683 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA699 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA719 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA733 |
|
| NEC Corporation, Nippon Elec... |
J |
|
| 2SA748 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA768 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA771 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA794 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA817 |
|
| Toshiba Corporation; Tokyo |
J |
|
| 2SA844 |
|
| Hitachi Ltd.; Tokyo |
J |
|
| 2SA900 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA933 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA940 |
|
| Toshiba Corporation; Tokyo |
J |
|
| 2SA958 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA965 |
|
| Toshiba Corporation; Tokyo |
J |
|
| 2SA968 |
|
| Toshiba Corporation; Tokyo |
J |
|
| 2SA970 |
|
| NEC Corporation, Nippon Elec... |
J |
|
| 2SA984 |
|
| Sanyo Electric Co. Ltd.; Mor... |
J |
|
| 2SA992 |
|
| NEC Corporation, Nippon Elec... |
J |
|
| 2SA999 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA1011 |
|
| Sanyo Electric Co. Ltd.; Mor... |
J |
|
| 2SA1012 |
|
| Toshiba Corporation; Tokyo |
J |
|
| 2SA1013 |
|
| Toshiba Corporation; Tokyo |
J |
|
| 2SA1015 |
|
| Toshiba Corporation; Tokyo |
J |
|
| 2SA1038 |
|
| ROHM Co., Ltd.; Kyoto |
J |
|
| 2SA1061 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA1104 |
|
| Common type Japan tube/semic... |
J |
|
| 2SA1112 |
|
| Common type Japan tube/semic... |
J |
|
Museum Roggenhofer started his/her tube collection (valve collection) here on 01.May.2007.
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