Apparently Amsterdam, and presumably the Netherlands in general, have 2 kinds of wall sockets, as illustrated in Lonely Planet's Pocket Amsterdam, page 176. One (let's say type 1) is the plain, recessed circle with two round prongs inside, the other (type 2) is a recessed, modified "circle" with flattened sides, small additional recesses on the (flat) sides, and small flanges top and bottom. RS says (ETTBD, page 84) that the continental European 2-pronged adaptor and the UK-type adaptor between them "fit virtually all outlets," which suggests that the 2-pronged adaptor will work in type 2 sockets. Can anyone verify that 2-pronged adaptors work in type 2 sockets?
Thank you