UNIBUS transceiver was RE: have an extra M105 + M7821 unibuscard?

[vrs]

> So... suppose for a moment that there's no viable commercially
> available part for making a bus transceiver with the proper
> specifications.
> 
> Do any of us have enough Q-smarts to make a bus transceiver from
> discrete transistors?   (I don't.)
> 
> Do any of us have enough IC layout smarts to design a transceiver SSI
> chip from raw transistor layouts on an IC?  (I don't.)

Me either.

> I'm just wondering about what happens when the current candidate for
> substitution also becomes unavailable...

I do think I could make a Q-bus receiver from a linear IC, like an 
"ultra-fast" comparator, pretty easily.

    Vince