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The exhibit above looks like a late (1960s) version of the IW4-350 but the initial letter is indistinct. This is an indirectly-heated 4V AC HT rectifier essentially equivalent to the MU12 and UU4.
This full wave rectifier features indirectly heated cathodes that are tied to one side of the heater.
The cathodes can be seen to be flattened ovals and the white oxide coating is visible through the holes in the anodes.
The classic envelope is 40 mm in diameter and, excluding the B4 base pins, is 104 mm tall.
This exhibit was last updated on 04 August 2006
This full wave rectifier features indirectly heated cathodes that are tied to one side of the heater.
The cathodes can be seen to be flattened ovals and the white oxide coating is visible through the holes in the anodes.
The classic envelope is 40 mm in diameter and, excluding the B4 base pins, is 104 mm tall.
This exhibit was last updated on 04 August 2006
The classic envelope is 40 mm in diameter and, excluding the B4 base pins, is 104 mm tall.
This exhibit was last updated on 04 August 2006
This exhibit was last updated on 04 August 2006 |