PALSTAR BK4N 4:1

This is a high quality and high performance balun that is ideal where amplifiers are used or where a very low loss is needed.

Lo-Z antenna applications
Center-fed wire antennas with open wire and twin lead transmission lines
Indoor use only
Nylon insulators
Large 3.25" Ferrite core with 12 ga. Teflon® wire
4kW rating