PingPong with sound for the KIM-1

I found a little hack to add sound to the Game 'PingPong' for the KIM-I

The original game was published in the First Book of KIM back in 1977.
The mod was added by George W. Hawkins a little later. Now I have the typical Pong sound when playing the game on the internal LCD.

Grab a copy here:

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