1: 1.33 RF Balun Transformer 4-2800 MHz Yb2f-617dB-0282-B105 for Boardband Use, UHF/VHF Receiver Use. Inductor, Splitter, Coupler, Choke Coils Factory China., Find details about China Transformer, Inductor from 1: 1.33 RF Balun Transformer 4-2800 MHz Yb2f-617dB-0282-B105 for Boardband Use, UHF/VHF Receiver Use. Inductor, Splitter, Coupler, Choke Coils Factory China.