variable regulator power

802.11 2.4Ghz Low-Power Vertical Antenna - A 2.4Ghz low-power 5dBi vertical collinear antenna for 802.11 applications

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 "Woodpecker" Tuning aid - This little gadget is that it allows you to tune up at full peak output power, whilst limiting the average power to a fraction of the peak, thereby protecting the PA from meltdown

Emtech ZM-2 Antenna Tuner Kit - The Emtech ZM-2 Antenna Tuner is a nifty little portable transmatch for QRP (low power). It utilizes the well-known Z-match circuit, which is especially useful for balanced antennas (like dipoles and loops).

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.

Rebuilding the Collins 516F-2 Power Supply - The Collins 516F-2 is a heavy-duty power supply for the KWM-2/2A transceivers and the 32S-1,2,3 series of Collins transmitters.

Getting started in contest - A PowerPoint presentation by Bruce Draper, AA5B on how to get started in contesting

KG4WBH Beacon - 28.222mhz transmitting with 2 watts of power

Strathcona Radio Volunteers - The Strathcona Radio Volunteers provides radio communication along with general manpower to public service, charity, and general events in and around Strathcona County. The club also provides backup communication to the Emergency Services of Strathcona County.

The Eastman Amateur Radio Club - Home of the repeater with the world's largest backup power supply

SolarVolt Power - Solar power products for the true environmentalist Solar energy systems, design engineering Residential and Commercial

Lashen Electronics - From connectivity for the home or small office and home theater cabling solutions to power management and protection as well as home and office sound and video solutions, lashen electronics has the tools and technology you need to do the job right.

Maxdao Technologies - Maxdao: offer you 7/16, N coaxial connectors, jumper cables, feeder clamps and grouding kits, surge arresters & brackets, wall entries and microwave components used in base tower, power dividers, couplers

Wire Free Direct LtD - UK company that's a full-line dealer for wind and solar power systems, plus system design.

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.

EhoCW - CW Keyer software by F8EHO keyer and decoder functions, with interfaces with emitter/Receiver, memories, variables for call sign, mp3 and wav morse conversion, direct keyboard keying, joystick or serial interface for a morse key

CirKits - Solar power DIY kits. Homebrew your own solar power regulator, and power center.

Free Sun Power - Free basic and advanced system design tutorials for every component and aspect of solar power. Plus system sizing calculators, battery bank calculators and wire size calculators

TANKIT Priority listing - A free design aid for vacuum tube linear RF power amplifiers. Determine plate circuit operating parameters and design pi or pi-L tanks quickly and easily.

Low power VHF RF amplifier - Low power VHF RF amplifier with VMP1 Mosfet by IZ1BTS IK1XPD

RW3AZ VHF amplifiers page - 2m/70cm GS31B Power amplifier pictures

70 cm Power splitter - A simple accurate power splitter for the 70cm uplink to Oscar 13 by G8EUX

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.

40 meter QRP Transceiver - This semi-homebrew QRP (low power) CW transceiver is based on the ARK-40 transceiver kit, by S&S Engineering. With its built-in CW keyer and 5 watts of power, the basic ARK-40 transceiver is an outstanding 40 meter CW performer

ICOM IC-E90 accessories - CI-V Interface and Power supply adapter for the IC-E90