Hello,
Can someone please give me some tips?
I have a very old calculator in my collection of devices that use nixie tubes, it has a strange behavior, if I press the number 5, it will turn the number 6 on and vice versa. This in any tube. I make any calculation correctly and if any result has 5 or 6, they will light up together.
Where should I start?
I was able to identify 3 drivers, should I replace them?
I researched and I understand that this calculator has little documentation. Despite being a beautiful piece of Soviet history.
Thank you