diy power supply

Homebase10 Antenna for 28MHz - The Homebase10 is a simple to make wire halo antenna for 10m (28MHz) built using parts available from the local DIY store.The resulting antenna is very effective on 10m despite its small size and light weight.

Samlex america - Manufacturer industrial and consumer power supply products including switching power supplies, solar panels, solar charge controllers, inverters.

marnic.org - F5VLB and EA4EOZ have designed a small but powerful system using satfinder and standard LNB to make radioastronomy. A step by step descritpion for the novice about radioastronomy, VLB and listening to echo of meteorite.

Modifications for the Kenwood TS-50 - Collection of TS-50 mods, LCD display dark, TS50<-->AT50 communication, TS-50 Power Mod for QRP, TX Coverage mod TS-50, CAT control for TS-50S

TS-50 power mod - Kenwood TS-50 power mod for QRP by WA6ERB

TS50-High-Power-Mod - With that small modification you'll get a Trim-Pot and the TS-50 is able to run up to 180 W output by DK0WFC

The Orion II A9 Power Distribution Fix - The Orion II A9 Power Distribution Board Problem and Fix by N6IE

DB37 FT-450 Cable - Schematic for Data, power, CAT, Key and Mic connection interface cable

DB15 FT-450 Cable - Schematic for Data CAT Power and Key cable interface for the Yaesu FT-450

Powering the FT-817 - Coupling the Duracell DR36 battery to the FT 817 The main advantages on this system are, the weight, size, quick battery changing and no stress to the FT 817 power connector

Jameco - Jameco carries over 50,000 semiconductors, passives, interconnects, electromechanical, power supplies, LEDs and other popular electronic component

Pihernz - Spanish radio dealer offer accessories, antennas and battery chargers, mounting accessories, cables and connectors, radio kits, power supply, pmr, vhf/uhf radios, all products for CB, ham radio and SWL.

WSPR - WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Stations with internet access can automatically upload their reception reports to a central db

KTune - KTune is a small utility that allows you to use a Griffin Powermate USB knob to tune your Elecraft K3 radio.

2 x GI-7B 432 MHz amplifier project - UHF RF Power amplifier used to work EME

Old 813 homebrew Amp - Restore an old 813 homebrew Amp with power supply from recycled parts

Restoring an Harris RF-103 - These amps are designed to operate from 2.0 to 30MHz continuously, at an RF power output level of 1Kw, in any mode, no time limit.

Power amplifier for 2m rig - An RF power supply for 144 MHz schematics and instructions

20 W linear amplifer for 2 meters band - A basic VHF power amplifier suitable for 2M (144-146 Mhz) the output power vary from 3 to 25 Watts By VU2RAR

Simple beacon construction notes - Here is a simple, self-contained beacon which can run a few milliwatts or as much as a watt depending on choice of amplifier and supply voltage.

Coax Charts - Coax cable attenuation and power ratings charts

LY3LP laboratory - QRP DIY and more

An universal power supply for rigs - VU3NSH article on high current universal supply for rigs

High current power supply for rigs - High current universal supply for rigs, project article by VU3NSH

How's Your SWR? - Chart showing how SWR effects how much power you actually radiate from your antenna.