Bally Gaming International of Las Vegas is using electronic noise to make a
slot machine with a truly random payout (EP 843 289).
Existing electronic slot machines rely on a computer to select “random” wheel
positions. The first number generated is truly random, but for cost reasons,
subsequent numbers are not. Now Bally has come up with a way of amplifying
low-level random electronic noise in a transistor, and using this as the clock
frequency for a wheel control circuit. No one can influence electronic noise, so
the machine cannot be cheated.
