Dekatron OG-3 Arduino Shield Shematic and code taken taken from https://threeneurons.wordpress.com/dekatron-stuff/ Thanks to to author M.Moorrees for sharing knoledgment about dekatron valve.
My shield is adapted to the OG-3 dekatron (an old dekatron never used that I have buy on e-bay many years ago)
Link https://www.youtube.com/watch?v=1ZcVwhfTBF8 to show the dekatron in action
