An electron energy analyser has been designed using the concept of the 'fountain spectrometer' and the 30 degrees plane electrostatic field configuration. The advantages of the design are that measurements at a number of scattering angles from 0 to 120 degrees can be made simultaneously. The performance of the analyser is illustrated by measurements of the electron distributions from H⁺ on He collisions, which show the processes of charge exchange into the continuum and autoionisation of the doubly excited He atom.