high voltage transformer

160 Meter short TX loop antenna - Here is a successful 160 Meter short TX loop antenna 4 feet high, 3 feet wide, and 6 inches deep.

80/160 Dual band vertical - This 80/160 meter antenna is constructed from six 12 foot aluminum tubes to form a slip-up mast antenna some 60 feet high by K0RWU

The Cycloid Collinear, a CP Omni - This paper describes a wide band, high gain, multi-element cp omni with a single 50 ohm feedpoint with instructions for building a 2 and half element cycloid collinear for 2 meters.

Build a HB 4:1 voltage BALUN for 1KW - In depth detail with photos on how to build your own HB 4:1 voltage BALUN that will run 1KW. Inexpensive and fun to build.

Antenna Loading Coil Construction Techniques - This page explains how to construct high-Q inductor coils.

Chokes Explained - A "choke" is the common name given to an inductor that is used as a power supply filter element. They are typically gapped iron core units, similar in appearance to a small transformer, but with only two leads exiting the housing

The Grid Yagi for 144 Mhz - The Grid Yagi (or Grid Quad) is a high performance yagi antenna that can be built with readily obtainable inexpensive materials. Described here is a 6 element 2 meter version with a boom length of about 1 wavelength, shown

HF antenna for high rise dwellers - If you have ever tried transmitting on HF from a tall block of apartments, where it's just not possible to erect a substantial aerial system, then this article is for you by Mel G4WYW

D3 Antenna for Field Day - D3+ High Performance Antennas for Field Day. This article describes versatile broadband wire antennas. These antennas will double your effective radiated power over a dipole, will be easy and inexpensive to build and install, and will be simple to match.

Mackenzie Highway Network - The Mackenzie Regional ARC currently Operates the VE6PRR (146.82- ) repeater. It's located approximately 15 Km North of Peace River. It is linked to the SARA system via Grande Prairie. We are currently in the process of expanding the coverage by adding number of repeater sites through out the area.

Packaging Radio Equipment for Shipping

Web and ATV Camera Frauenstaffel - Webcameras, Frauenstaffel - Waidhofen - Austria, ATV-Webcam on a 150feet high radiotower.

Haverford Squid Poles - Haverford stocks a large range of multi-purpose telescopic poles. They are high quality fibreglass construction with approximate wall thickness of 1.1mm

Acmetex - Acmetex Group Company is a leading integrated manufacture of high temperature textiles in China. Fiberglass products.

TOYO Connector (TYC) - Certified under ISO9001:2000 and focus on sales of high frequency coaxial connector (BNC, TNC, SMA, SMB, N, F, UHF, RCA etc); attenuator; termination; surge arrester; conversion; coaxial cable assembly; high frequency coaxial cable etc.

G4ILO Stealth Amateur Radio - If you are a ham and live in a modern urban or suburban development, putting up a highly visible antenna may make it difficult to stay friends with your neighbours.

ePartGrocer - ePartGrocer is a fully equipped on-line store providing large varieties of high quality electronic parts at bargain prices to meet the one-stop-buy requirement of our customers.

ViPEC Network Analyzer - This program intended for electronic circuit analysis (mainly for Linux). ViPEC is a powerful tool for the analysis of high frequency, linear electrical networks.

Morse Code Master - Highly innovative, audio-visual morse code training software for 'slow' and Farnsworth methods from Stratosoft.

A low cost 600 watt ultra-linear amplifier  ^pop - This compact little amplifier is the brain-child of Pat Murdoch, ZL1AXB, in Auckland, New Zealand. It is only 11" wide, 4" high, and 9" deep. Operates for 40, 20, 17, 15, 12, and 10m

Audio processor for SSB transceiver - This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.

Accurate Inductance Calculator - This page allows you to calculate in the most accurate way high-Q inductor coils.

A low cost UHF/VHF duplexer - Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.

Safe,effective grounding - Practical applications for end-fed antenna transformers and safe, effective grounding

Small Unregulated Power Supply Project - Here's a simple power supply that can be used in many applications. It is not regulated , so keep that in mind for voltage sensitive devices , and of course you will need to understand how to select the correct amperage and voltage for the AC transformer.