RC Delay, Beginner 15 Year old EE, need help ASAP!

Integral

Google search on reading schematics

My thought is, if you read through or watch some of sites on that list you will then be able to draw us a schematic diagram. We need it to help you.

Also it may help you with getting your circuits working.

dzimmerm

That circuit looks an awful lot like a circuit for driving an LED using alternating current. The LED would rectify the small alternating current and the resistor would limit the current so as not to burn out the LED. The capacitor would couple the AC to allow enough current to flow to allow the led to light.

If you use DC then you would not get any current through the capacitors. I supposed if you had a very unfiltered DC power supply the ripple might cause the LED to light.

hacker15

I am using a 15v dc 30mA power supply, which i found laying around and soldered/shrink wrapped breadboard jumpers on, for easy experimentation. Is it not possible to power though a capacitor this way?

Integral

A series capacitor blocks DC current. So no you cannot power anything through a cap in a DC circuit.

hacker15

Darn. So I guess it's time to make another shopping list!