ECM Bench kelp needed

[Matt S Bower]

Bruce Plecan wrote:
> 
> I have a wiring diagram for my DIS signal generator that uses two 74LS161s.
> I have been every where locally and no one has them.   I have found some
> similiar part nos. at Digi-Key,  those being a:
> DM74S161-ND,   and a
> MM74HC161N-MM
> Can I use these?, one perferable to the other?, what's the difference in the
> three.
> Thanks
> Grumpy

Either of these should work from what I see on them.  The MM74HC161N-MM
part is a CMOS part so will be more suseptable to static discharge. 
Other than that they should both do the job.

Matt