Who's rewired their house for this hobby?

Jon Elson elson at pico-systems.com
Thu Nov 27 11:29:54 CST 2014

On 11/27/2014 08:28 AM, William Donzelli wrote:
>> When a single-ended
>> signal crosses a power supply domain, if the supplies aren't very
>> close, bad things can happen.
> This is a problem that the power supply folks solved a long time ago.
> If they still can not get a number of supplies tracking each other
> properly, then fire them and get new guys.
Well, when you have hundreds of Amps flowing across the 
backplane, it gets
hard to have all boards having the same voltage.  Even if 
you have, maybe 4
boards in a block, there will be significant voltage drop 
from the feed end
to the far end.  If you make the power planes too thick, it 
becomes impossible
to solder the backplane connectors, so you have to go to 
press-fit contacts.
That is all well-known technology now, but might have been 
on the cutting
edge when the KL10 was designed.


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