alternative power

N5ESE\'s Notebook Antenna - A Low -Power Indoor Portable HF Antenna by Monty Northrup, N5ESE

Mobile antenna controllers - All remotely controlled HF mobile antennas require some sort of device to power the motor. Hints on setting up a ham radio mobile antenna by k0bg

Bob\'s Antique Radio & Electronics - Quality restoration supplies for vintage radios, amplifiers and juke boxes. Supplies include capacitors, electrolytics, pilot lamps, AC power cords, dial cords, Novus polishes and reproduction items.

G4NKX RADIO PAGES - HF Low Power cw/digital activity updates at G4NKX Blog

New York City Amateur Radio Emergency Communications Service NYC-ARECS - New York City Amateur Radio Emergency Communications Service (NYC-ARECS) is a NYC based auxiliary communications service. The organization is made up of amateur radio operators who are trained and dedicated to providing radio communications for governments, civil-preparedness and relief agencies during periods of local, regional, or national civil emergencies. This may include situations such as power failures, explosions, fires, floods, earthquakes or terrorist activities. NYC-ARECS is a participant in the NYC Office of Emergency Management (OEM) Partners in Preparedness program and a member of DHS FEMA's National Preparedness Coalition.

SEC America, LLC - offers Rack Mountable DC Power Supplies, OEM Power Supplies, and Communication Series Desktop Power Supplies for a wide range of uses, including powering radio equipment.

N4L Test equipment - N4L design and manufacture versatile, high-accuracy, easy to use instruments for power electronic test & measurement

AM Operation Using Power SDR - AM Operation Using Power SDR with Flex and Other SDR Platforms

Ameritron AL-1500 modification - Adding a second 3CX1500A7 tube to the Ameritron AL 1500 power amplifier

ALS-600 Review by AD5X - The Ameritron ALS-600 600-Watt HF Power Amplifier review by AD5X

Ameritron ALS 600 pictures - Mods.dk collection of Ameritron ALS-600 power amplifier

Mods for the Kenwood TL-922 - VE3FWA pages dedicated to the Kendood TL-922 rf power amplifier

TL-922 band selector change - Changing band selector to a Kenwood TL-922 power amplifier by IW1PUR in italian

Radius Power - DC Filters - DC filters from radius power are specifically optimized for applications with DC supply like e.g. photovoltaic inverters. Radius Power provides total power solutions, EMI filters solutions from design to manufacturing, Three Phase, Single Phase, Power Line, IEC inlet, Power entry modules Filters.

EvoSpice - A numerical optimizer (solver) for LTSpice IV. Uses a fast evolutionary algorithm. You can use EvoSpice to design high efficiency power supplies, audio filters, low noise RF amplifiers and an endless list of other applications

4-1000A Tube RF Amplifier - Home Brew a 4-1000A RF power amplifier project by W4NFR

Kenwood TL-922 Modifications - Pictures of some modifications to the Kenwood TL-922 HF power amplifier

Coaxial Cable Attenuation Ratings - Coax ratings, attenuation and power ratings

Building a Dummy Load - Building a Dummy Load and Measuring Power Accurately by Ken, K4EAA

AVR Butterfly Keyer - The Atmel AVR Butterfly is a credit card sized board which contains an AVR MEGA169 processor, a six character LCD display, a five way joystick navigation switch, a piezo speaker, a 3 volt lithium battery cell for power and a few other odds and ends.

Power and power measuring techniques - Article on how to measure power, what power is and the different ways of specifying power

PC Power Supplies to Ham Equipment - Converting A PC Power supply for Amateur Equipment

A low cost 4 Amp power supply - A low cost, compact 4 Ampere regulated power supply

An Accurate Power Meter For QRP Ops - A circuit using two junkbox transistors and a garden variety op-amp that will let you accurately measure your rig\'s flea power down to milliwatts.

A 12-Volt Homebrew Regen - A one-tube battery-powered regenerative receiver.