Re: on/off circuit

On Thu, 29 May 2008 17:38:01 +0100 in sci.electronics.basics, Eeyore
<rabbitsfriendsandrelations@xxxxxxxxxxx> wrote,
A monostable is what you need. Press the switch and it will stay on for X
minutes.

How would one design that in such a way that there would be zero
(or practically zero) battery draw after it shuts itself off?
.