Hello there ....
I doubt anyone here can help, but you never know.
Predominantly we are all decrepit old sods who were born in The Victorian era.
Our interest in coin operated/slot machines tends to circle around purely mechanical three reelers and wooden boxes with a ball bearing in them.
Whereas I didn't comprehend a single word of your OP after "I am looking for the ...."
and that you were asking for help, I got a strong sense you may have been talking about something related to electrikery. A substance not familiar to all of us, but we hear it may be the future, and also that it hurts.
I wish you every luck with your mission and await to see if any other members here are more informed about the Black Arts of which you mention.