VECTORLIST - The Mailing List For The Technical Discussion of Vector-Based Arcade Games

January_1998
Battlezone Clock

From: Mitchell Rohde ( )
Date: Mon Jan 19 1998 - 10:25:51 CST

  For all you Battlezoners out there... how clean is the clock signal on
your board? Specifically, I looked at the signal generated by the
crystal/inductor/transistor circuit, and it was a nice 12 MHz sine wave.
This feeds a 7404, which I assume turns it into a square wave.
Unfortunately, it is a pretty ugly square wave... more like a sine.

 I calibrated my scope and probe, so I don't think it's that distorting
the signal. Any thoughts?

                                        Mitch

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