0-30V 1A Variable power supply using IC-741,2N3055 & 2N3565

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.

Power supply regulator 0-30V 1A by IC 741 + Transistor 2N3055 & 2N3565
Circuit power supply regulator 0-30V 1A by IC 741 + Transistor 2N3055+2N3565


PCB power supply regulator 0-30V 1A by IC 741 + Transistor 2N3055+2N3565

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One Comment

  1. vasudev October 13, 2015

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