Displays & Indicators

Can you guess what the 'thing' in the picture above is? I will give you a couple of clues - 1, it is from the Soviet era. 2, It is a component that is widely used today, but the form factor has changed somewhat. Answers on a postcard. There are no prizes for guessing the correct answer, but you can live with the knowledge and glory that you were correct! 😄 ↓ Scroll down for the answer