Make-It-Yourself projects
Electronics Australia, may 1976

This article features an interesting project designed with a some TTL chips (of the 74XX family) used in analog mode. Because some parts of the whole design are analog, one or a few electronic components were used to featured uncommon effects in the games.

The system plays a two-player game which can be varied in several ways. The most common variant is the inversion a paddle to obtain a vertical line with a hole. Then, the system can let a paddle (or hole) wobble to increase the game difficulty. There is also a quite unique optional interaction between both players which is such that when one moves his paddle or hole, the other paddle or hole will move a little bit. By combining these options, a total of 32 variants. More can be obtained by placing one or two holes at specific locations. Here again, this article shows how to make several variants of a same game with a few classic logic chips.

Click the photos to see them in large scale.

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If you want to build the game, you will want to view a larger version of the circuit board implementation layout as seen in Page 41.	Page 43	Page 45
Page 46	Page 47	Page 49

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