these RTL or what?

William Donzelli wdonzelli at
Fri Oct 5 11:42:15 CDT 2007

> VAX9000 built of ECL100K, fastest of the fast.  The second most common
> use of TTL was in very high speed instrumentation and specifically frequency
> counters and UHF PLLs.

If the 9000 series was till using 100K, DEC must have been sleeping.
By the 9000s development period, ECL was beyond 100K. I am not sure,
but 10E may have been out by then. 10G maybe as well, but using that
leads to insanity.

But one thing I notice about DEC's ECL machines (9000, KL10) - for
being ECL, there sure were ssssllloooowwwww.


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