First...I was halfway through my first year in electronics at school. At this time i was "of course" an expert... (yeah right!) I wanted an extra floppy drive on my first A500. I already had a msx-spectravideo computer wich i opened and removed the floppy from. I then soldered a cable myself from the floppytastion to the ext. drive. on the back of the A500. Then powered it up and smoke arrived. The lare two resistors between the two 8520 chips inside the amiga was burned up.
Second... I made a wooden case for my A600. Pretty nice if i may say so myself... Only thing i forgot, keyboard. An adapter to an external keboard was not awailable at the moment. After a LOT of searching i gave it up.
So there... :-)