Seen a 7805 open up once, guess the shutdown had an issue. I also learned it's also a good idea to pay attention to voltage and polarity with tantalum caps. Anybody got any really good incendiary stories?
What, you don't like my flaming 293? Another time, I had a TO-220 MOSFET literally melt off its
heat-tab. Little silvery beads came out from between the chip die and the heat tab.
L298 will go to 1.5-2 Amps, plus it's a Multiwatt15 package, so you can screw a big heatsink to it,
but they're still the same bipolar technology as L293. The 293/754410s are DIP16, but you can epoxy
a smallish heatsink on top if you like.