Coin or token-operated tennis net

A self contained game duration controller for a conventional game utilizing a net stretched across a court between a pair of substantially parallel stationary posts, said net being supported at a top edge between said posts by means of a cord cable, said cord cable having an end fixedly attached to one of said posts, said controller requiring no modification to said posts but being readily adapted to said conventional net game, said controller comprising a housing means for attaching said housing to the other of said posts, a rotatable drum mounted in said housing for winding the other end of said cord cable therearound for raising said net and unwinding said other end of said cord cable for lowering said net, a reversible electric motor mounted in said housing, means driving said drum from said reversible electric motor, and a coin or token-operated switch and timer for controllably energizing said reversible electric motor for rotation in one direction upon insertion of a coin or token in said switch and timer for driving said drum in a direction of rotation that causes winding of said end of said cord cable around said drum for raising said net and for energizing said reversible electric motor for rotation in an opposite direction for driving said drum in an opposite direction of rotation unwinding said end of said cord cable from around said drum for lowering said net after a predetermined period of time.