Mechanical Memories Magazine

Selector Unit
This unit is a 25-way switch that selects the winning colour and the payout amount as
soon as a coin is inserted. This selector moves one position if one colour is bet, moves
two positions if two colours are bet, right up to five positions if all five colours are bet.
There is only one position that pays the 12d and also one position that pays the 6d win.
There are five positions paying 4d, and eighteen positions for a 2d win.
So the winning colour and payout amount are pre-wired into the selector unit
(meaning red is the only colour that could pay the 12d, and orange is the only colour that
could win you 6d). Basically it's so simple, but of course back in the 1960s not many
people could afford to play twenty-five consecutive pennies into one slot, so working
out a system was never on the agenda. We had a bit of amusement at the time, which is
what it was all about.
The selector which determines the payout sequence.
Page 12