Flashlight Timer

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Children's flashlights often have timers to preserve battery life.

A nice design which even turns off if the pushbutton is held depressed or jammed a long time. Not re-triggerable while the light is still on though(Thanks for pointing that out Watson):

Circuit Diagram aka Schematic reverse engineered from circuit board

Below is one that starts off bright and slowly dims out to nothing. They could have eliminated the need for a power switch by putting a 2.2M ohm resistor across the capacitor:

Circuit Diagram aka Schematic reverse engineered from circuit board

Safety, accuracy and completeness of information provided herein is not guaranteed,
so be inspired by it but do not use it as a basis for experimentation or other actions.

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