This is 0-30v variable power supply circuit with PCB,at 1A.
It is old circuit I used IC UA741 or LM741 OP-AMP IC for control adjustable Voltage by VR1 (see in image circuit).
The transistor 2N3055 is classic part for booster current up to 1A min.
I used transformer 2A. it big size in PCB but sure current peak 1A min.
If you are interested in this circuit.
But fear that it will not work. You can see the details of…
0 – 30V / 0 – 1.5A Adjustable Regulated Power Supply
Although the circuits are is not the same. But it will help you succeed in certainly electronic projects.
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