Re: Retro computer homebrew: Orton Karenbak-1 computer
Quote:
Originally Posted by Karen O
Hi John,
10k pull-downs will work with HC/HCT logic but a bit of a no-no on LS gates. I forget what current emerges from a low LS input - 400uA...? You have to pull it down to at least 0.5V and that demands a low value resistor - around 1k if I've got my Iout(LOW) right.
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Thanks Karen
John
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