nebelwerferXXX wrote:Where these German radios were water-proof and shock-proof ? Thanks !
Up to a point. They were designed to be used outside so they could withstand some rain but certainly not total submersion. Some portable radios were designed so that they could be used with their covers in place (like the Feldfunksprechers, Torn.Fu.g, Torn.Fu.h) which would keep most of the rain out. Most of the two box radios could withstand some rain on their faceplates, but they should preferably be placed under shelter.
The sets were reasonably rugged and could withstand some knocks and rough handling. They did however contain fragile components (like glass enclosed radio valves) so you don't want to drop them from any height! The boxes were often made from a 3 mm plate of triplex sandwiched between two layers of aluminium sheet, giving a light and sturdy casing.