An x-ray tube of the Coolidge type (length 82 cm), similar to the previous one, which lies on a wooden platform and separated from it by two ceramic insulators (height 25 cm).
The filament consists of a flat spiral of tungsten wire placed at the extremity of a thin cylindrical sheath of metal; while the anticathode is composed of a cylindrical block with the end flanged which is joined to a long metal rod which connects it to the outside and supports it.

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