Extracto de la colección de válvulas de Hans Smit. Estas imágenes fueron aportadas en la página de válvula respectiva por Hans Smit.
| OC171 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OC170 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OC141 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OC140 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OC139 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OC80 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OC77 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OC74 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OC30 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OC16 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OAZ213 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OAZ210 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OAZ207 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OAZ206 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OAZ203 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OAZ202 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OAZ200 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OA95 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OA79 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OA31 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| OA7 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| BCZ12 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| BA100 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| ASZ21 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| ASZ18 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| ASZ17 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| ASZ16 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| ASZ15 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| ADZ12 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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| AC128 |
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| Valvo GmbH, Radioröhrenfabri... |
D |
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