FB Mix 31 - RFI Range: 1-300 MHz
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![HF Impedance Transformer Kits 581480183 - HF Impedance Transformer Kits](https://i0.wp.com/d2j6dbq0eux0bg.cloudfront.net/images/10325621/581480183.jpg?ssl=1)
FB102-31 - 1/2" ID, RFI Range 1-300 MHz
FB102-31 - 1/2" ID, RFI Range 1-300 MHz
SKU FB102-31-1
$3.30
On Sale
![HF Impedance Transformer Kits 581498120 - HF Impedance Transformer Kits](https://i0.wp.com/d2j6dbq0eux0bg.cloudfront.net/images/10325621/581498120.jpg?ssl=1)
FB103-31 - .77" ID, RFI Range 1-300 MHz, LMR600
FB103-31 - .77" ID, RFI Range 1-300 MHz, LMR600
SKU FB103-31
List price
$21.50
Save 42%
$12.50
On Sale
![HF Impedance Transformer Kits 581480169 - HF Impedance Transformer Kits](https://i0.wp.com/d2j6dbq0eux0bg.cloudfront.net/images/10325621/581480169.jpg?ssl=1)
FB56-31 - 1/4" ID, RFI Range 1-300 MHz, 10 Pieces
FB56-31 - 1/4" ID, RFI Range 1-300 MHz, 10 Pieces
SKU FB56-31-10
List price
$16.50
Save 9%
$15.00
These impedance transformer kits have been designed for the Do-It-Yourself (DIY) enthusiast and Instructor workshops on baluns and ununs for antenna matching and RFI use.
The impedance transformers are classified in ratios of 2:1 (100:50 ohm) to 16:1 (800:50 ohm). The outputs can be configured as balanced (Balun) or as unbalanced (unun) with respect to the inputs which are considered all unbalanced coax at 50 ohms. All impedance transformers are designed for 1.8-31 MHz unless otherwise specified.