High Voltage Circuit - crackling sound

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1 week 1 day ago #10206 by slaurin
Hi,
I just finished assembling the high voltage circuit and when I test it I can hear a crackling sound. The sound is really faint.

Nothing is hot on the board. I measured 192 volts.

Here's a link to the sound:
drive.google.com/file/d/1A9hRk_wqtH_fpAY...vw2/view?usp=sharing

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1 week 1 day ago #10207 by Ian
Hi, it is normal. There is a long thread about this elsewhere on the forum; In the newest version of the code, the crackling has been removed, but it is fine to have it.

The explanation is really long and involved, and it was a great piece of technical detective work, but if you want to read a modern day detective story, I'll post the link for you.

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