This stabilized source can supply currents up to 200 mA with the indicated transistor or 500 mA with the BD136 and voltages from 3 to 12 V depending on the zener. The transformer must have at least 2 V more than the desired voltage at the output.
This stabilized source can supply currents up to 200 mA with the indicated transistor or 500 mA with the BD136 and voltages from 3 to 12 V depending on the zener. The transformer must have at least 2 V more than the desired voltage at the output.