The Cricket Scoreboard Prototype Unit
with notes from John Hinchliffe's project notebook

Workbench showing drawing board and completed prototype circuit

More detailed view showing relay contacts.  Note controls for checking wiring on drawing board.

Matrix displaying digit 2.  Note the effect caused by partial illumination of the unused bulbs.

This view shows the power pack components: transformer, 4 rectifiers in bridge configuration, resistance, smoothing condenser

Contents The Gallery Artifacts - Electronic Scoreboard Prototyping