I had a client once for whom I processed a "nuclear survivor" claim. He was a commo guy in the pacific during severl of the post-war tests. Among his jobs was going abord surviving test target vessels to evaluate damage.
We got to talking about the tests, and EMP cam up one day. In those vacuum tube days, the damages to electronic equipment from EPM was -- none. Not even at Bikini (sp?) Atol, which is the shot we hung our claim upon.