Pre-7400-series logic ICs (was Re: Weird 7410)

From: William Donzelli <>
Date: Wed Mar 6 16:53:01 2002

> I _think_ I have some 7400-series chips from 1967, but no earlier. They'd
> be in a PDP-8/L if, in fact, I am remembering correctly.

I don't know when the 7400 line was kicked off, but I could believe late

> Indeed... I am looking for some (and not expecting to find any) to
> build a replica of a DW08, DEC's pre-TTL TTY interface made from W-series
> and R-series logic.

Frankly, I think you will spend less time and resources just finding an
original DW08. The 700 series chips are out there if one looks carefully,
but so are the two DEC boards.

William Donzelli
Received on Wed Mar 06 2002 - 16:53:01 GMT

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