I have a dead Lynx; maybe this program will bring it back to life?
I'm calling BS on this one. The only brickable consoles are those with updatable firmware, meaning Nintendo DS and later consoles can actually be bricked by homebrew. The vast majority of vintage consoles and computers cannot be bricked do to the fact that (A) there is no firmware, or (B) it is stored in a mask ROM that cannot be erased.
That said, it would certainly be possible for an improperly wired cartridge to damage a console. One way of doing it would be to use the mapper chip on an NES cartridge in an unorthodox manner, for example instead of triggering a bank swap, the mapper chip could instead initiate a "device" that sends a lethal dose of electricity to the CPU. One very effective way of doing this would be to include a super capacitor and charging circuit similar to the flash circuit inside a camera. A shunt resistor is used in series with the charging circuit so that the cartrige does not pull too much current from the NES. Please note this means the device will take longer to do damage. The camera circuit works by slowly charging a capacitor up to a few hundred volts, then you close a switch and it is instantly discharged harmlessly through the flash lens. This would be an excellent starter circuit to destroy something. The mapper chip could activate a 5V relay that would discharge the super capacitor directly into the NES VCC, essentially nuking the entire system with 200+ volts of energy! Every chip in the console will smoke/pop simultaneously! Or, instead of nuking the NES with an electircal spike (which would also nuke the "death" cartridge), you could make a self-destruct cartridge with a Mission Impossible style countdown, "This cart will self destruct in 5 seconds". The capacitor is wired up to a light bulb filament, which is used to detonate an explosive device inside the cartridge. Both cartridge and NES go out with a bang...
Edited by stardust4ever, Tue May 7, 2013 3:14 AM.