I'm at the point where I need some hints or help from others who are more acquainted with analog circuits than I am. It's been over 20 years that I heard "Elektrotechnik" at a high school and many details are lost to beers and what not ;-P
The only thing more or less clear to me is that pullup resistors on TTL inputs can be seen as if they weren't there.
How I should treat a capacitor is already a little more difficult. Should I care at all? Probably, because a capacitor while being charged is conductive.
Diodes are conductive for one polarity, depending on how anode and cathode are connected to other parts.
Now comes a difficult part: a network of transistors, resistors, diodes and capacitors. Would it be feasible at all to try to evaluate such a network's digital equivalent, if there is any?
The other Pong emulations treated that specific section of the schematics as being non-existent (mine) or as a special black-box digital circuit (Dan Boris'). I would, however, prefer to try to emulate such a circuit at the simplest level, using only two voltage levels of 0V and 5V and just time delays due to capacitor values.
Is there someone out there who would be able to tell me how to tackle this job? That'd be fine, because otherwise I see no way out but using replacement black-box function generators in the schematics.
Juergen
The latest, corrected schematics:
http://img2.imagetitan.com/img.php?image=33_pong858.png
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