CESS Balun 75/300 ohm TV Connector Antenna Matching Transformer (4 Pack) FM Antenna Matching Transformer 300 to 75 ohm / 75 To 300 ohm. Quick Connect "PAL" Matching Transformer. Converts 300 ohm to 75 ohm. Use to Convert the 300 ohm Twin Lead Wire to a 75 ohm Connector.