[time-nuts] ? info on RS232 time interval counter

[Bill Janssen]

Some on on this list mentioned a Richard  McCorkle's Time Interval Counter.

Is there any place on the web that I can get some more info on this. I 
don't want to
buy a HP counter to do comparisons of crystal oscillators. I have to 
frequency counters but
they are not really useable for phase comparisons. So I intend to build 
something.

Bill K7NOM