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Delay Timer

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Delay Timer.

--- "DO IT YOURSELF" ENTRY ------- PURPOSE: Delay timer allows switch to stay on for one to eleven seconds even if the switch is only activated briefly. A simple electronic circuit is constructed on a micro miniature prepunched perfboard and placed into a small box. Twenty-two gauge stranded wire is arranged on the perfboard and soldered into place. Resistors, 9 volt battery, electrolytic capacitor, audio transistor, potentiometer and mini relays are also soldered into place. The circuit board i

Parent Category: Switch Interfaces

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