I thought the current flowing through the led would be smaller expecially with current limiting resistor, then the current flowing through Nixie tube (causing glow discharged)
I will try to connect it with nixie tube as intended.
I attach the diagram I intent to use. Not sure how to post the image so it shows in the body of the message
The nixie tube I want to control is IN-1 and I found in the data following information
Typical Cahthode Current mA 2.5
