On 23 Jan 2010, at 10:19, roger_millin wrote: > 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
Indeed . . . very well looked up Nick. I'll have a bit more of a read later. Elec-tronics have always been a worry to me. Elec-tricks - with wires, bulbs and motors - I could just about get along with, but when they discovered those 3-legged transistor things and pcbs the whole subject got hazy. I believe that technology may have advanced even further. Quite frankly any engineering which you can't fix by hitting something with a spanner is anathema to me. Beeky
