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From: martijn@dnlunx.pttrnl.nl (Reinalda M.)
Newsgroups: comp.sys.amiga
Subject: Re: 14Mhz hack on a 500?!?!?!??
Message-ID: <1697@dnlunx.pttrnl.nl>
Date: 28 Sep 90 07:42:16 GMT
References: <60575@iuvax.cs.indiana.edu>
Organization: PTT Research Neher Laboratorium
Lines: 20

The 28 MHz signal is best tapped on pin 34 of Fat Agnus. If you sit in
front of your computer, then P34 is on the upper row, the second from the
right. The D-flipflop to use is the 74ALS74. Don't use a slower type, just
to be sure. By the way, you should use a 14 or 16 MHz CPU or the 68000 will
experience some serious timing problems.

This are the FF pin connections to use :

p14 -> +5V
P7  -> GND
p13 -> +5V 
p10 -> +5V
p11 -> 28 MHz input
p9  -> 14 MHz output
p8  -> p12

Don't use wires longer then a few centimeters.
If you get any E-mails or other info on this subject, please post'em next
to this article so us hardware hackers can read'em too.