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useful power supply
The old, thrown out, computers are a mine of small spare parts. The little speaker is a useful too to track stepper motor drive signals. Switches and led's can be re-used and the drives have small motors, some have stepper motors and some have wonderful magnets.
Recently,I saw a project on converting a computer power supply into a bench power supply. It works a charm. There are many projects, both on YouTube and on the web to show how it is done. Special attention should be paid to the switch connections, the led connections and the load required to allow the unit to switch on.
I have used it for stepper motor power and for small guitar circuits with no problems. The main thing is the education you get from such a project and the amount you save by making as opposed to buying such a power supply.
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