Homework / test English to Polish Tech/Engineering Electronics / Elect Eng

"The former on which coil turns are wound can be a sheet of thin cardboard or gum paper about 40mm by 35mm wide rolled in a tube. Its diameter should be sligltly larger than of any ferrite rod/slab used so it can freely slide up and down. It is therefore good idea to make this check before proceeding further".

Dotyczy konstrukcji cewek domowym sposobem do radioodbirnika.