Reflex Unit (bingo)
A simple mechanism in the game which stepped up when credits
were won and stepped down when credits/coins were played. As
it stepped up/down, electrical circuits in the game were broken/made.
The circuits were used when playing for increasing the scores/features
or extra balls. Bally marketing speak referred to the reflex
unit as "proportioning the game". What that really
meansis that as credits are awarded, the game is less likely
to give you extra balls or increase the scores/features. As
credits are played off/coins deposited, the game gets more generous.
The reflex unit does not reset between games, so if you win
big, leave the game and let someone else loosen it up with their
money!