December 1957 - April 1958
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
| A.O. Schaap | President |
| J. Rijk | Secretaris |
| G.G. Sipkes | Thesaurier |
| Bart Lageman | Vice-President |
| A.N. Verveen | Commissaris |
December 1957 - April 1958
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
| A.O. Schaap | President |
| J. Rijk | Secretaris |
| G.G. Sipkes | Thesaurier |
| Bart Lageman | Vice-President |
| A.N. Verveen | Commissaris |