Ring (toroidal) cores made of powdered iron.
Purchase of one piece means purchasing one core described in the auction topic.
Product features:
the most popular material, used in a wide range of applications for power conversion and linear filters,
closed magnetic circuit ,
core covered with a yellow-black insulation layer increasing the safety properties of the finished element.
low Al tolerance=5%
Application:
radio frequency core for HF baluns or output transformers of power amplifiers.