Replacement for a DEC 7474 Chip

ben bfranchuk at
Sat May 14 17:08:55 CDT 2022

On 2022-05-14 11:50 a.m., Nigel Johnson Ham via cctalk wrote:
> AFAIR LS can only drive one unit TTL load.
>>     paul
LS is 4 TTL, 4 ma low.
Was there a trick of forcing the output of D flip flip
to clear it? I was wondering if this is what kills all
the 7474's?

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