On Thu, 2003-10-30 at 14:08, Bob Shannon wrote:
> Guy Sotomayor wrote:
>
> <snip>
>
> >>
> >
> >The HPs use CML (Current-Mode-Logic) which is a little bit strange but
> >there are replacement boards available (from dealers and others).
> >
>
> Err, thats not exactly correct. Early HP's use CTL logic, like the 956,
> etc. Its similar to TTL
> but with an uncommited emitter output stage. Logic supplies are +4.5
> and -2.
Sorry. IBM used CML which is similar to CTL.
--
TTFN - Guy
Received on Thu Oct 30 2003 - 19:23:54 GMT