These baluns and ununs can be used for impedance matching and also as End Fed halfwave antenna matching transformers to 50 or 75 ohm coax cable.

DC Power Filters

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25-AMP (Peak) IN-LINE ELECTRONIC FILTER for 12 VOLTS DC, AUTOMOTIVE, RV RFI, ALTERNATOR, PULSE NOISE SUPPRESSION

SKU RFI-N700

$49.95

30-AMP (PEAK) IN-LINE TOROIDAL DC NOISE FILTER for 12 VOLTS, ALTERNATOR, PULSE NOISE SUPPRESSION

SKU RFI-N25

$34.95

Automotive Battery Charger RFI Kit - - 1-300 MHz RFI Suppression

SKU RFI-CHARGER

$39.95

Big Clamp On RFI Noise Filter for AC/DC power lines, Coax/Multi-wire cable - 1" ID

SKU BCO31

$19.95

DC Cable Noise Filter for 2 Gauge and Smaller Wire - 1.4" ID

SKU DCCF-1.4

$12.95

DC Cable Noise Filter for Large Gauge Wire - 3" ID

SKU DCCF-3

$39.95

On Sale

DC Voltage Common Mode Noise Filter - Marine, RV, Communications, Off Grid Power, 600 Volts/30 Amps

SKU RFI-DC-30

List price ~~$129.95~~

Save 23%

$99.95

DC-AC Inverter Common Mode RFI/Noise Filter Kit for DC in and AC Output

SKU RFI-INVERTER

$34.95

FREE USA SHIPPING

Extra Large Ring/Multi-Snap On Combo Pack, Mix 75, RFI Range 150 KHz-10 MHz - 28 filters (1/4", 1/2", 1.4")

SKU XLRSCP-75-28

List price ~~$327.00~~

Save 8%

$299.95

FT400-3I, ID=3", RFI Range 1-300 MHz

SKU F400-31-1

$39.95

Power Pole DC Power Cord RFI/Noise Filter - up to 30dB Noise Reduction, 45 Amp Connectors

SKU PPNF-3

$34.95

On Sale

RV/Trailer Multi-Ring/Multi-Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 17 filters

SKU RVCP-31-17

List price ~~$112.00~~

Save 15%

$95.00

Switch Mode Power Supply (SMPS) Common Mode RFI/Noise Reduction Filter Kit

SKU RFI-SMPS

$27.95

Wall Wart RFI Noise Filter Bulk Pack of 10 Filters

SKU RFI-WW-10

$29.95

Wall Wart RFI Noise Filter Pack (5 filters)

SKU RFI-WW-5

$16.95