May 1947 - October 1947
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
| J. van Ravensteijn | President |
| U.J.K. Versfelt | Secretaris |
| W.H.L. van Helsdingen | Thesaurier |
| Albert Delsman | Excursieleider |
| L. Oosting | Commissaris |