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.
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.