Soft start circuit schematic, saved as a 1.78 MB PDF; the note in the name indicates it was converted from another format. Soft start circuits limit inrush current when a large transformer and filter capacitors are switched on, often using a resistor bypassed by a relay after a delay. No device or author is named. It is useful for adding or repairing inrush protection on power amplifiers, and you should check relay ratings, resistor wattage and mains wiring safety before building it.
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