Yes, this version of Pong is 100% electro-mechanical. The playing field consists of a ball and paddles that are attached to servo controlled cables, sandwiched between two sheets of glass. Instead of microcontrollers and integrated circuits, Pongmechanik uses three sensors to determine mechanical movement. Players use the joystick to drive a relay computer (simple logic circuit). Video clip after the jump.

“The score counters go from 1 to 5 and the numbers are displayed on two rotating discs; as soon as a player gets five points, the game resets. The sound effects (all two of them) are created using solenoid plungers.”

[RetroThingMakeShoutIt]