In a read station, a set of 80 spring wire " brushes " pressed against the card, one for each column ( the 407 read station, constructed without brushes, held the card stationary and could read a card multiple times, each time generating the same impulses as would be generated by an 80 spring wire station ).
12.
In a read station, a set of 80 spring wire " brushes " pressed against the card, one for each column ( the 407 read station, constructed without brushes, held the card stationary and could read a card multiple times, each time generating the same impulses as would be generated by an 80 spring wire station ).
