![Planning to make a variable power supply with this schematic and I was wondering if a switching power supply would be better than a transformer as the input? and if it is Planning to make a variable power supply with this schematic and I was wondering if a switching power supply would be better than a transformer as the input? and if it is](https://preview.redd.it/xxn2l0kdxr091.gif?format=png8&s=c7c1d5b5ab2619f0e060a6c643b9b76715beb893)
Planning to make a variable power supply with this schematic and I was wondering if a switching power supply would be better than a transformer as the input? and if it is
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LM338K 3 Bit Digital Display Step Down Buck Converter Power Supply Module Voltage Regulator DIY Kit 3A
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1.2V To 32V 5A Adjustable Power Supply Using LM338K | Circuit Ideas I Electronic DIY Projects I Robotics
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Amazon.com: Rakstore LM338K Adjustable Voltage Stabilized Power Supply Board Linear Regulator Module with Rectification Filter 3.3V 3V 5V 9V 12V 24V : Industrial & Scientific
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