Modelo | Año | Categoría | Válvulas | Fotos | Foro | Coll.Pr. | ||
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Tube Socket No. 16 | 1922 | Radio part | 1 | ![]() |
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Variometer No. 90 | 1923 | Radio part | 5 | ![]() |
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Federal Bulletin No. 119-W [October 1922] | 1922 | Paper | 12 | ![]() |
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Federal Telephone Bulletin August, 1922 No. 115-W | 1922 | Paper | 28 | ![]() |
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Federal Telephone Bulletin March, 1922 No. 106-W | 1922 | Paper | 8 | ![]() |
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