When the momentary push-button (PB) switch is closed, 12V from C3 is applied at A, causing T2 to turn on. This state grounds the Reset bus, turns on PFET T4 by putting V gs (on) on its gate through ...

The RadioShack guys, of course, didn't know.<P>As I understand it, the ATX switch is a "momentary" push button, that works like a DOORBELL switch -- i.e. push it in for a momentary connection, and ...

Pressing the launch control momentary push button switch sends power to the solenoid valve. When the brake pedal is pushed, hydraulic pressure is applied to all four brakes.