HF Impedance Transformer Kits

439892343 - HF Impedance Transformer Kits
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HF Linear Amplifier RFI Kit - Drake L4, L7 - 5 Filters

RFI-LA-DR
$74.50
In stock
1
Product Details
MPN: RFI-LA-DR
Filter Power Rating (PEP watts): max coax cable rating
RFI Suppression Range (MHz): 1-100 MHz

Included are the following chokes and installation guidelines:

RF Input: F240 toroid – 5-9 turns of RG-58 size through center

RF Output: FSB-1 (Big Clamp on) – 3 turns of RG-8 size cable

Relay Cable: FSB-1/2 – multiple turns through choke – ½” diameter hole

AC Power Line: FSB-1 (Big Clamp on) – 3 turns through center

DC Power Line: FSB-1 (Big Clamp on) – 3 turns through center

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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.