Galvenized garbage cans will work as well. Any conductive container will work. Insulate the items inside from the metal as well.
Yes, I want a galvenized garbage can since the neighbors stole ours (and the brand new never used garden rake) but being on a budget I was thinking of what I had on hand already.
“Galvenized garbage cans will work as well. Any conductive container will work. Insulate the items inside from the metal as well.”
The problem with this is the seal on the lid. The energy from an EMP propagates in at least two ways - one in free space, another through “skin effect” along the outside of a conductive surface. The lid of the trashcan has to fit tightly, and with electrical uniformity. This is unlikely in a hardware store garbage can.
You can improve the chances by taking steel wool fragments (not the kind with soap) and place it along the edge of the can and placing the lid over it so that there is a more uniform seal - sort of an impromptu RF gasket.
You don’t need to have the insulation on the inside unless whatever you are storing requires it, or needs shock protection.
It’s not mil-spec, but it’s probably about as good as you can get without breaking the bank if you have a concern about electronics that you want to store. Maybe it would do the trick - but there would be no way to know without expensive testing.