Quote:
Originally Posted by Terry_VK5TM
Basically a little circuit that detected (via a short aerial) the static discharges and prevented credits being racked up.
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The circuit in Atari pong consisted of 3 transistors in a set-reset configuration, the "antenna" was simply connected to the transistor's base, there was no base resistor, just diode backwards across the BE junction, so the collector-base leakage charged the b-e junction up and it sat just below the threshold where there was any significant collector current. Then if a static discharge occurred, or a burst of RF, it immediately reset the game.The circuit is described in the article I posted above.