This is the unregulated Split power supply circuit, intended to supply the hi-fi audio amplifier. This power supply circuit is very simple, and no great skill is needed to assemble this circuit.
There are a few things one should be careful with, such as the routing of high current leads, but these are easily accomplished. The design diagram of this power supply is very simple. A 4 ampere fuse is used to secure the transformer and two LEDs at the end of this circuit are used to indicate power state On and Off. At the output there are 6 capacitors used, you can reduce the quantity of these filter capacitors to 2 or according to your own choice, but do not reduce the value of the capacitors too much because the lower value of capacitor can increase the "hum" sound of the amplifier.
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