19f7da08_DK_LABORATORIES__Purpose
[Action] Basic Schematic [Purpose] 
A momentary switch, mosfet, led's resistor and cap. Time constant approximated by how long it would take for the bleed resistor to reduce the starting voltage (9v) to the dropout voltage of the gate (depends on the mosfet). If your working with unlabeled parts, test values until you find the time constant you want, as gate capacitance is probably unknown.
DK LABORATORIES
Purpose