wideband transformer

The optimized wideband antenna - NW3Z yagi antenna designs for Dayton 2001 Includes yagis for 20 15 10 meters.

6element 50 MHZ Yagi - Less than 20' long but super gain figure and wideband with flat SWR.

Balun and Transformer Core Selection - Occasionally errors are made regarding core selection. This especially includes baluns, where on occasion some very strange ideas surface.

K1FZ Beverage Antenna Transformers - The K1FZ series of beverage antenna transformers are what you need to utilize your beverage antenna to its full potential

The quarter wave transformer - A transient analysis of an inpedance transforming device, by W9DMK, in pdf format

An easy loop for VLF - An easy VLF loop, 200Hz-20kHz reception without transformers by Renato Romero and Marco Bruno

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

Projects and Info Center - Antenna projects and info center by KP4AO, including The Optimized Wideband Antenna (OWA) Yagi and Skyhawk, a state-of-the-art trapless tribander

This Week in Amateur Radio - Amateur Radio News and Information Bulletin Service delivered via satellite on AMC-7, transponder 5, 7.5 MHz wideband audio and over the internet in MP3 and RealAudio format

TE Systems - Manuf RF power amplifiers wideband+narrowband for Commercial, Defense, OEM and amatuer markets. Also low-noise rf amplifiers

WL1030 Wideband Magnetic Loop - Wideband receiving loop for VLF LF HF 10 kHz - 30 MHz

CWS ByteMark - CWS ByteMark's Baluns (Balanced to Unbalanced) and Ununs (unbalanced to unbalanced) transformers are developed jointly with Dr. Jerry Sevick, W2FMI, who is known worldwide for his work on transmission line transformers

MicroSignals - MicroSignals produces a line of RF and IF signal processing components that offer high performance at an exceptional value. To achieve this MicroSignals began with an engineering team that possessed an excellent background in RF Transformer and Balun design.

Kemo Electronics - Electronic kits, modules, devices and cases, transformer, boards, electronic accessories

Peter W. Dahl Co. - Quality amateur radio transformers and electrical supplies

Peter W. Dahl Co. - Custom transformers by Mr. Dahl has been designing specialty transformers and reactors for over 35 years, and has been a licensed Ham radio operator, K0BIT, since 1955.

Erickson Engineering Priority listing - QRP SWL baluns and antenna matching transformers

PC to RTX interface - Schematics for IC-706, IC-718, IC-756PRO, TS-570, TS-870, and simple universal S.B. interface All three interfaces presented on this page employ galvanic isolation of the transceiver from PC computer. Audio paths are separated by transformers, optocouplers serve to separate the digital paths (PTT and RTTY keying).

Electronic Goldmine - Electronic components dealer, semiconductors, switches, leds, motors, solar energy, ferrites, toroids, capacitors, batteries, jacks and plugs, microphones, meters, power supplies, speakers, transformers, wire and more

Antique Electronic Supply - Antique Electronic Supply has a complete line of vacuum tubes. We feature Svetlana vacuum tubes for amateur radio, broadcaasting and audio applications. We have over 700,000 new old stock tubes to choose from. We also have a complete line of transformers, featuring Hammond and One Electron. Capacitors, resistors, parts, books, etc. Most orders shipped within 24 hours. Major credit cards accpeted. E-mail for free catalog!

Italtras - Power transformers for electronic, toroidals,three-phases

Inductors and Transformers - Solenoids, variable inductors, electromagnetic induction, transformers theory at G3YNH

Transofrmer tutorial - Roll Your Own Power-Transformers

How to obtain a dual voltage without a transformer - How to obtain a dual voltage without a transformer

Rig to Soundcard Interface by M0UKD - Practival project that contains two isolation transformers, one for AF from the tranciever to the line in on a soundcard, and one from the audio out of the soundcard back to the mic / data input of the radio. Both of which are variable inside the interface via two preset resistors.