This electronic circuit is designed for stabilize an output voltage between 50 and 250 volts.
Output voltage can be adjusted using potentiometer P with a value of 1M.
T1 transistor T, can dissipate a power of about 6 W, if mounted on a heat sink with a surface area of 30-70 cm2.
Maximum current provided depends on the output voltage (power dissipated by the transistor T, must not exceed 6 W). For an output voltage of 50 V, the maximum current is 25 mA and for an output of 250 V, current is about 120 mA. Stabilization accuracy is 0.5%