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| Valvo was the German tube division of Philips as were Mullard (UK) and Amperex (US and Netherlands). Practically identical construction and materials between the three European-made brands, only the manufacture location differed. (US-made Amperex tubes used different tooling,Valvo tubes are really the same tubes as Amperex Mullard with the different Logo.Some even prefer these tubes.Maybe because other German tubes such as the Telefunkens have such a great reputation. |
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| EABC 80/6AK8 |
| EBC 81/6BD7 |
| ECH 81/6AJ8 |
| EL 84/6BQ5 |