ferrite rod

Making a simple current balun - Baluns using ferrite rod and ferrite ring by M0SCG

OH7SV Windom baluns - Windom baluns for kilowatt range made with two ferrite toroidal cores amidon ft-140-61 and another schema with two ferrite rods

The Guanella 1:4 balun - A cost effective current-mode 1:4 balun can be constructed from two lengths of coax, two ferrite rods, some electrical tape, cable ties, a length of PVC water-pipe and some connectors. This form of 1:4 current-mode balun is named after G. Guanella.

WWVB Loopstick Antenna - A loop antenna for receiving WWVB based on the Amidon R33-050-0750 Ferrite rod.

Active ferrite rod antenna - An active antenna for HF done with a ferrite rod by OH7SV

Ferrite rod antennas - Ferrite rod antenna or aerial, a form of RF antenna that is widely used in RFID and transistor radio applications.

Ferrite Rod Antenna - Ferrite rod antenna or aerial, a form of RF antenna that is widely used in RFID and transistor radio applications.

The Ferrite Rod Antenna - Theory of the ferrite rod antenna

OH7SV Matti Hohtola Ham Projects  ^pop - The most modern QRP transceiver in 2004,Direct Conversion HF Transceiver with DDS LO, 50 ohm to 200 ohm HF wide band transformers, Wilkinson splitter for RX measurements, Windom baluns 2001/2004, Ferrite rod antenna for 80 meter, Magnetic Loop Antenna for 80 m, Mascot Switched PSU 9320 modification to 8A peak current, 150W MOSFET linear amplifier for 80m, 80 m HF SSB/CW Transceiver

CWS Coil Winding Specialist - Manufacturer of transformers, inductors coils and chokes. Custom winding, EMI / RFI Filters, Antenna Windings on ferrite rod, Antenna Winding on phenolic. Any antenna coil designs.

Taiyo Yuden - Ceramic capacitors, inductor ferrite products, high frequency dielectric components like chip antenna and filters.

A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.

Fair-Rite Products Corp. - Ferrite components for the electronics industry

Coil32 Priority listing - Coil32 is a free coil inductance calculator, that allows to calculate: single layer and multi layer air core coils, toroidal air core coils, inductors on ferrite rings, in pot core, flat coils on the PCB, and also LC resonance parameters. The program have additional plugins to calculate another kinds of coils. The application is free for usage and distributing.

Tutorial on ferrite balun cores - Toroid cores, ferrite rods a good electrical tutorial on baluns