I'm trying to build a 2.5 second delay that powers a 5 second timer that drives a coil. the coil being where LED1 is.
I've searched several sites and come up with this. (attached)
I've also ran it through the simulator at www.multisim.com and its not doing what I want it to do.

I'm new to circuit construction and any help would be greatly appreciated.

 

Your first 555 is wired wrong, the capacitor goes between pins 1,2 the resistor from pins 2,8 this will trigger it.

You can achieve this with one 555 using pin 4 for the 2.5second delay, capacitor between pins1,4 and resistor pins 4,8,,

then start the timer using pin 2 as normal, ..

 

I'm trying to build a 2.5 second delay that powers a 5 second timer that drives a coil. the coil being where LED1 is.
I've searched several sites and come up with this. (attached)
I've also ran it through the simulator at www.multisim.com and its not doing what I want it to do.

I'm new to circuit construction and any help would be greatly appreciated.View attachment 129438

Do you want the 2.5 second delay to start automatically on POWER-UP and then, once that delay times out, to have its decay start the 5 second timer, or do you want to separately trigger the 2.5 second delay after POWER-UP and then, once the 2.5 second delay times out, to have its decay start the 5 second timer?

 

Thanks for the help, guys. Greatly appreciate it.
What i am giong for is, power on, 2.5 second delay, power applied to coil for 5-10 seconds, power off.

 

Thanks for the help, guys. Greatly appreciate it.
What i am giong for is, power on, 2.5 second delay, power applied to coil for 5-10 seconds, power off.

Here is a circuit using a 555 timer, alter the 47k preset for 2.5seconds power up delay, and set the 100k preset for 5-10 seconds on time.