Recently acquired an SB-200 parts unit from a 10 year stay in a pole barn. Power tranny tests OK for shorts and continuity etc. Before powering up (with a variac of course...) I was thinking of putting it in the oven to get rid of any moisture that may be present. I've heard 120-140F for 2 to 4 hours. What have you guys done 73 Mark K3MSB