Manually programmable storage device

A program storage device which can be variably manually programmed, comprising:

• a housing;
• at least one elongated printed circuit board mounted within the housing, and having:
• a plurality of primary electrical contact surfaces arranged adjacently and in at least one row in the longitudinal direction of the circuit board;
• and at least one secondary contact surface that extends in the longitudinal direction of the circuit board;
• a transverse board serving as the top wall of the housing and having a row of slits formed therein for each circuit board, each row being longitudinally aligned with its respective circuit board;
• and
• a plurality of slide contacts each having interconnected electrical contacts, said slide contacts being constructed for insertion into the slits formed in the transverse board and for support by the transverse board, such that the interconnected electrical contacts electrically connect at least one primary and at least one secondary contact surface of the printed circuit board, wherein the openings of the slits in at least one row of slits vary in a periodic fashion along the extent of said at least one row, and wherein each slide contact has a number of staggered step regions situated in the longitudinal direction of the slide contact, which number corresponds to the number of different slit openings of said slits, said step regions serving to limit the insertion depth of said slide contact.