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.
HF Linear Amplifier RFI Kit - Drake L4, L7 - 5 Filters
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
