so if i add a resistor it would slow it down right?
No, you wont slow it down, it wont get energized at all!
The only way to increase the time is t oincrease the capacitor value or use a relay with greater coil resistane or make the circuit Bill suggested.
About the capacitor value it must be in Farads.
how did you get 9000Ωs?In a common collector circuit the apparent resistance from the base to ground (through the emitter) is the gain of the transistor (β) X the emitter resistor. Figuring the resistor is around 180Ω and β is 50, this brings the resistance up to 9000Ω. 1000µF X 9KΩ = 9 seconds.
You can read more about common collector transistor layouts here.
so if i flip c1 and r1?Bill's circuit does exactly the opposite, it will let the relay to be energized for a while after you power it and then it will de-energize it. To make it work the way you want you have to flip the position of the capacitor and the resistor connected to the base.
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