My first contribution (thanks Giovanni for your support and reviews!):
EMF measurements

Another article (this wasn't possible without Giovanni's support as well!):
Conductor marking lights

Here follows a first draft of a new article: User:Gmenta/Draft of article
Draft of another article: User:Gmenta/Draft of article2
User:Gmenta/Draft of article3
User:Gmenta/Draft of article4
User:Gmenta/Draft of article5