December 1921 - April 1922
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
| Frans Otten | President |
| F. de Fremery | Secretaris |
| H. Rebel | Thesaurier |
| A.G. Zinsmeister | Vice-President / Afgev. C.C. |
| W.F. Einthoven | Bibliothecaris |