I'm looking for an IC that works as a function generator and FM modulator. The NTE864 looks like it will do what I need it to, but it's $30 at mouser and they're the only place that carries it according to findchips.com. All I really need is an FM modulated square wave up at 100kHz min.
They are only $1.77 vs. $30 for the NTE864. They are available at more suppliers too, but not my normal ones. Still, overnight shipping for one is still less than the cost of the other!
findchips.com found them at over half a dozen places.