[Coco] 6809P/6309P Blinkenlights Circuit/CPU Tester

Kip Koon computerdoc at sc.rr.com
Thu Oct 8 18:13:07 EDT 2015

Hi Fellow Builders,

I have built a 6809P, 6309P Blinkenlights Circuit that I intend to use as a
cpu tester as well.  It currently stops too quickly as in a second or two
which may be related to the 6809P - 1 MHZ chip that I'm using getting kind
of warm early on in the build.  At one point, it ran off and on for about a
half hour.  I'm going to try a little higher value for the resistors and see
if that helps.  The link to my dropbox for this project is 


I'm currently writing this section of my wiki page over the next hour or so,
so check back periodically through this evening.  Feel free to ask
questions.  I hope to solve the stopping problem fairly quickly.  Have Fun!


Kip Koon

 <mailto:computerdoc at sc.rr.com> computerdoc at sc.rr.com




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