Years and years ago, I came across simple electronic schematics for making enlarger timers. I tried looking for these on the 'net, and found one type which is meant for timing exposures for making PCB "Exposure boxes". I don't know if this can be used as an enlarger timer. Anyone else got something different? Buying a ready made timer may sound practical. However, almost all of the timers I see on eBay are for 110V, which is unsuitable for the 220V standard in use here. I am planning to equip timers for the 4 enlargers in the communal darkroom we recently set up.