Abstract: A compact assembly or arrangement of components or constructional elements which are constituted of interconnected conductive printed circuit boards with electrical components and with cooling members for the dissipation of the heat from the energy losses of the components, especially for the realization of a complex signal processing circuit in flying bodies or missiles. The cooling members are constituted of relatively large-surfaced flat plates as carriers for printed circuit board modules which are located on at least on one of their side surfaces, and which have one end surface with contacting regions of flexible band conductors press against connecting conductive paths on a wired printed circuit board which is oriented perpendicularly thereto.