开云体育

I have to disagree. I've been over every millimeter of of this unit and can find no part that is more than slightly warm, and those parts are the 22 RTL logic chips. So unless all the chips have all equally drifted upward in current draw I must conclude that the issue is bad design with regard to heat sinking. So I've put all the original capacitors back in the instrument and replaced the BR with a more modern type that is chassis mountable. I found there is a convenient unused stud on the inside of the rear chassis panel. The new BR, which also ran rather warm in the air, now runs cool and just barely warms the rear chassis after about 30 minutes of use. I tapped the new BR directly into the secondary of the transformer and installed jumpers on the PCB in place of the old BR.