🚀 go-pugleaf

   Help!  This is an amusingly simple question, but I've been working on it
for some time now, and can't come up with an answer...

   I need a circuit that will, on application of power, cause a delay of 5-20
seconds before allowing current to flow through (a different part of the circuit)
   Basically, it should take, say, 12v, wait 10 seconds, then trip a relay.
It's for an alarm circuit.  (I didn't see much point in paying $159 for $30 of
components and a few hours of work.)
   I tried a deceptively complex setup with a FET and a timing cap and all sorts
of other nasty things, but I can't get ANYTHING out of it.

   Any help would be greatly appreciated...
   Andrew