[rescue] Sun Kit Needed for EE Student Here

wa2egp at att.net wa2egp at att.net
Thu May 4 00:50:26 CDT 2006

> Again, apples and oranges. That Tyan motherboard has far 
> higher speed trace than the old U60 board you put there. 
> That may give you a hint on why them caps are there, I 
> recommend a remedial review on concepts such as line 
> decoupling. And you are assuming that somehow SUN board = 
> good, and Tyan board = bad. Well if capacitors are a 
> metric of bad design then the latest SUN offerings must be 
> aweful, lets look at the insides of a T2000:
> Plenty of caps there, I guess the quality of sun design 
> must have gone through the drain. Afterall... look at all 
> them caps!

Line decoupling?  Heck, old S-100 machines didn't use as many
electolytics as that PC board and electrylytics don't work very well 
at higher frequencies.  The circuit must really pull the
+V down.


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