Survivors finish their first lap around the pond at City Park and ring bells to symbolize the time when they rang the bell at the hospital after completing treatment during the Relay for Life of Wood ...
Have you ever needed to power a 12-volt relay in a circuit but only had 6 or 9 volts available? This simple circuit will solve that problem. It allows 12-volt relays to be operated from 6 or 9 volts, ...
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