UTM 7-4 – Matching Transformer, Video Balun, 75 Ohm to 300 Ohm.
Special Price
$2.98
Regular Price
$4.95
READY TO SHIP - ONLY 12 LEFT IN STOCK!
SKU
163519
UTM 7-4 – Matching Transformer, Video Balun, 75 Ohm to 300 Ohm.
An UTM-7-4 75 to 300 Ohm matching transformer is a bidirectional electrical device used to convert radio frequency signals between different line impedances. It corrects the connection mismatch between a standard 75-ohm coaxial cable and a legacy 300-ohm flat twin-lead antenna or television system.
Status: Discontinued / Rare
Key Technical Specifications
• Impedance Ratio: 4:1 transformation ratio (converts 300 Ω down to 75 Ω or vice versa).
• Bandwidth Range: 5–900 MHz
• Signal Support: Full compatibility with HD TV, UHF, VHF, and FM radio bands.
• Component Type: Passive device consisting of internal ferrite cores that require no external power.
• Installation: Push-On
Dimensions: 1.328” Long x 0.917" Wide x 0.945 High.
Typical Applications
• Connecting Legacy Antennas: Hooking an older outdoor antenna with 300-ohm screw terminals to a modern 75-ohm RG6 coaxial cable feed.
• Legacy Television/Receiver Support: Converting a modern 75-ohm cable wall outlet feed to hook directly onto the two-pronged 300-ohm screw inputs found on vintage radios and CRT TVs.
Made in Poland – No Counterfeits – No China – No Delays – No Disappointments
New Old Stock
| SKU | 163519 |
|---|---|
| Condition | NS - NEW SURPLUS |
| Part Number | 6-455-2 |
UTM 7-4 – Matching Transformer, Video Balun, 75 Ohm to 300 Ohm.
An UTM-7-4 75 to 300 Ohm matching transformer is a bidirectional electrical device used to convert radio frequency signals between different line impedances. It corrects the connection mismatch between a standard 75-ohm coaxial cable and a legacy 300-ohm flat twin-lead antenna or television system.
Status: Discontinued / Rare
Key Technical Specifications
• Impedance Ratio: 4:1 transformation ratio (converts 300 Ω down to 75 Ω or vice versa).
• Bandwidth Range: 5–900 MHz
• Signal Support: Full compatibility with HD TV, UHF, VHF, and FM radio bands.
• Component Type: Passive device consisting of internal ferrite cores that require no external power.
• Installation: Push-On
Dimensions: 1.328” Long x 0.917" Wide x 0.945 High.
Typical Applications
• Connecting Legacy Antennas: Hooking an older outdoor antenna with 300-ohm screw terminals to a modern 75-ohm RG6 coaxial cable feed.
• Legacy Television/Receiver Support: Converting a modern 75-ohm cable wall outlet feed to hook directly onto the two-pronged 300-ohm screw inputs found on vintage radios and CRT TVs.
Made in Poland – No Counterfeits – No China – No Delays – No Disappointments
New Old Stock
