Dual Polarity Power Supply +33V, 0 , -33V

The following diagram is the example of dual polarity power supply circuit which will give you (+33V) ; (0) and (-33V) DC voltage. This circuit is usually used for power amplifier circuit which require dual polarity power supply to work.

Components List:
R1 = 3K3 1/2W
C1 = 10nF/1000V
C2,C3 = 4700µF/50V
C4,C5 = 100nF/63V
D1 = 200V 8A Diode bridge
D2 = 5mm. Red LED
F1,F2 = 3.15A Fuses with sockets
T1 = 220V Primary, 25 + 25V Secondary, 2A minimum
PL1 = Male Mains plug
SW1 = SPST Mains switch

source: redcircuits.com

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Power Supply Adapter

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