RE: Multiplex help... really technical
I think if you are talking about 1K you are talking about when you were at UNIVAC and not the multiplex receiver. I would expect the series resistor on a multiplex receiver to be between 5-100 ohms (my guess is 11, 22, or 33 ohms) for current limit and noise rejection. Any more than that and it is going to turn into a voltage divider and the RC time constant becomes a problem. Series termination is still a valid thing to do though at the other end and will quite down the wire.
No insult intended because your basic premises are exactly on target but everything is mosfets now and much faster. Loading is more capacitive than resistive. I just don't know the drive strenght and slew rates on the receiver outputs. - Otherwise I would spice it...