Hello all, About a year ago I bought a used DSL401 combo. I read prior to buying that amplifiers made mid 2003-after had corrections done to the board/bridge rectifier in reference to overheating. Here’s my question. My amp is built mid 2004, yet when I yanked my chassis out to look around at where the bias pot and test point was to potentially change my own power tubes, I noticed the board is marked DL-40-60-00, and if I’m reading right, the updated board should be DL-40-60-02. Shouldn’t my board be an 02? I’ll add photos if I can.