The 65EX5 is a mystery. It is a full wave rectifier on an IO base. It is probable that 65EX5 is a production code and not a Type designation![](../pics/aaa0964b.jpg)
The image above sent in by Baptiste Hobbe shows a Type 83 rectifier with the code 65EX5 on the base cap. The 83 is a mercury vapour rectifier on a UX4 base and so different to this exhibit.![](../pics/aaa0964a.jpg)
The anode side elevation of our mystery valve.The wide glass tube envelope is 29 mm in diameter, and excluding the base pins is 67 mm tall.Reference: Observation. |
Updated April 05, 2017.
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