Question regarding the identification of a component

Sep 09, 2025 Last reply: 10 months ago 1 Replies

Attention: fup2!



Hello,



In an older power supply unit for GM counter tubes, the high voltage (max. 1 kV) is generated by a normal push-pull voltage converter (switching frequency approx. 8 kHz). In the HV filter chain, this



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capacitor is connected in parallel with the following strangely marked component of the same size,



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which my Far Eastern multitester identifies as an 8 nF capacitor. That could well be the case, but why the strange marking? A VDR? What do you think?



Many thanks in advance for your hints.



Best regards



Reinhard


Seems pretty skinny for a >1 kV varistor, so I expect it’s a house part number.

Cheers

Phil Hobbs

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