On Wed, 4 Nov 1998, Tony Nixon wrote: > Brian Striggow wrote: > > > > Some pretty basic eprom erasure questions: > > > > What is the effect of direct or indirect sunlight on eproms?? > > > > In the absence of a UV source, could direct sunlight be used to erase an > > eprom?? > > When I first started messing around with EEPROM's all I had to erase > them was the sun. So, yes it does work, but you need a sunny day with no > clouds, and it will erase in a few hours. On cloudy days, forget it. Ouch ! That ozone hole must be really big. When was this ? It takes at least 420 nm to start erasing and it takes less than that to start a skin cancer. Peter