A coworker of mine let me take home and try out a bass rig he has had sitting in storage for ages and wants to sell it for a couple hundred bucks. It turned out to me a Peavey 4X12 cabinet, which I have had before and not to fond of for bass, and what appears to be a very old Fender Bassman Silverface Head... I fired it up and after about 2 minutes of playing I heard a sizzling noise and saw smoke coming from the left side and quickly shut it off, so now I have two questions... How do I find out the year of the head? the serial number as A55930 and the speaker output says "50 watts" Second.. is anyone familiar with the symptoms I described of the smoking? Is this an amp that would be worth repairing and selling? It definately isn't something fitting to my taste in sound But if can sell it for enough cash to by something more suitable for me, that would be a great!