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  1. S

    0-30 Vdc Stabilized Power Supply

    Guys You have been awesome supporting this project. I have built this PSU (see attached) but need some help! I have a step-down transformer with 2x75VA secondary windings. If I connect them in series I get 34.0v AC and 52.0v rectified. This I think is too much for the OPA445s, in fact I know...
  2. S

    0-30 Vdc Stabilized Power Supply

    Hi audioguru and others, Very much looking forward to building this but want to be 100% sure of the approach from the start. I'm fairly new to electronics though so please excuse the stupid questions... in replacing D1-D4 diodes with a single bridge and Q1/Q2 with TIP31A,
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