super_star

【CW32】How many fans do I have?

 
Overview
Hello everyone, I am Houheihou~ I recently got a few IN14 Nixie tubes, a product of the industrial age of the last century, and a 4G module ~ Thinking of the huge fans on my b site, why not use it to display my number of fans? ~ Hahaha~ Let’s walk~ 
 
Note: The fast recovery diode MAX1771 needs to be replaced to reach 170V    ~
参考设计图片
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Update:2025-06-24 20:40:29

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