A guy I know recently had his dad come buy and I noticed he had an old beat to hell Ampeg SVT speaker cabinet in the back of his van. I asked him about it and he said his son was storing it at his garage and he also had the head too. I talked to his son and he said he used to play bass thru it back in the seventies. But now he has no use for it. Its been in storage for at least 15 years. He very recently hooked it up to the speaker cabinet and turned it on he said he heard a bit of hum and then started to see some smoke and immediately turned it off. He is going to drop it off soon for me to take a look at it. What would be your first inclinations as to the smoke source, Dead mouse?, dried up old caps? Whats your thoughts??