The output voltage is adjusted by the trimpot. The power transistor mist be mounted on a heatsink. The 3.9 ohm resistor must be a wirewound type with more than 3 W of dissipation.
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The output voltage is adjusted by the trimpot. The power transistor mist be mounted on a heatsink. The 3.9 ohm resistor must be a wirewound type with more than 3 W of dissipation.