Timer circuit advice

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Cheers fella :)
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Dont know if we are there yet, but maybe ...

555 Mono (for delay ) -> While on for 1-5 seconds is also charging a cap/variable resistor based potential divide, which when state changes affects the enable/trigger (cant remember) of the chip.

God knows im tired, will think in the morning
 
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A helpful gent from another forum posted this solution using NAND gates;

Delayed_Pulse_SCH.png


It works fine with a LED however I'm having much trouble trying to get it to trigger a relay. I think the transistor I'm using doesn't have a high enough HFE. The resistor coil is 250 ohms and AFAIK the max output of CMOS logic is 1mA?

Any help appreciated!
 
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