LM13600, 13700 National Semi obsolete

[Bissell, Harry]

While surfing (scuba diving) the National website, I notice that the LM13600
is on the Last Time Buy list and the LM13700A (lower offset voltage) is
obsolete. I also note that lots of my brothers at synth-diy are fond of
these parts. Don't get caught with your pants down, get some stock now. It
looks like possibly Exar and Raytheon may still be second sources for the
LM13600 ....  
:-(   Unhappy analog death face.       Harry Bissell