Thread: ID this valve.
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Old 2nd Dec 2021, 8:14 pm   #1
G6Tanuki
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Join Date: Apr 2012
Location: Wiltshire, UK.
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Default ID this valve.

A power-rectifier, on a 4-pin base with the pins bifurcated, 5V seems to work well as heater voltage.

Indirectly--heated cathodes but with the cathodes strapped to the heaters, which sort-of hints that it is an analog for a directly-heated precursor.

There's a little 'nub' on the bakelite base adjacent to one of the four pins - presumably to give guidance whrn plugging it into its socket.

Intriguingly - the two anode-assemblies are rotationally offset so that they do not face directly towards each-other; this is clearly an attempt to stop them radiating the inevitable anode-dissipation-Watts at each-other.
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