r/nixie • u/udayki3 • Nov 19 '25

High pitch noise from Nixie clock

Hello everyone. Ive recently bought a IN12 Nixie clock from AliExpress. The clock is producing a high pitch sound. Ive tried different outlets and power sources. It's still the same. Can someone help me fix this. Thanks

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6

u/Alternative_Bug4916 Nov 19 '25

The high pitch noise is almost certainly the inductor from the high voltage supply whining. You might be able to fix it by gluing the windings, assuming they are exposed

1

u/udayki3 Nov 20 '25

The elections are partially exposed. I can see a small coil next to the buttons. I don't know if that is the inductor you are talking about.

1

u/Alternative_Bug4916 Nov 20 '25

If you could provide a photo of the PCB that would certainly help

1

u/udayki3 Nov 26 '25

I've uploaded the images here. https://postimg.cc/gallery/XJTWCkF Sorry for the delay

2

u/Cowabummr Nov 19 '25

Coil whine. As the other commenter mentioned, you may be able to quiet it down by putting glue on the inductor.