tecno4

Old ATX power supplies are an excellent and cheap way of getting a power supply that can generate 3.3, 5 and 12 Volts in a stable form and with high currents. It's also really easy to convert them into bench power supplies or to power anything that requires 3.3, 5 or 12 Volts. You can either obtain them from an old PC you have lying around, or one that a business is throwing out. Alternatively, they can be bought really cheaply from places like eBay.