I discovered Wikipedia in February 2004, and was delighted with what I found. I am learning how to use these excellent tools and, in the process, trying to make useful contributions to topics where I have some expertise.
I am greatly impressed with the power and potential of a collaborative encyclopedia project. I am proud to be able to make a contribution.
some things to do:
relay history - the contributions of Henry and Morse as a coherent development path
relay surge - tungsten loads are the worst case, not inductive, fix that application section
despite all that there is in here, there are some important design insights still missing
schmitt trigger - for connecting fast logic to slowly changing signals
related discussion of how slow signals might burn up cmos
related discussion of logic level definitions and "undefined zone"
inverter transfer functions, it is strange these are missing