Nick pointed to: > In that case, a little circuit that sits between the two and does any of > extend the on period to one hour, extends it by one hour, or makes it a > minimum of one hour should be a doddle to knock up using something like > this (just the first search I found, I'm sure there dozens of other > units that could be used) and a little bit of relay logic depending > which of the three options you wanted (which do you want?). > > http://www.quasarelectronics.com/ci0003.htm
At a quick glance that looks like just the thing. Who's going to be the first to wire it into their circuit? Roger
