28v power supply

Basic Ham Radio Course - Power Point Presentations by the Toronto Emergency Communications (EmComm) Group represent an aide to train interested volunteers in becoming Amateur Radio Operators.

Cobra Electronics - CB Radios, GPS systems, marine electronics, two way radios, power inverters, speakers, antenna mounts and microphones.

Communication Coil - Communication Coil, Inc. designs and produces custom, high reliability Filter Networks, RF Coils, Chokes, Inductors, Baluns, Toroids and Power Magnetics for communications

Vacuumschmelze - Manufactures inductive components for telecommunications and power electronics applications.

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

Kits and Parts dot Com - Supplying Toroids, Electronic Parts and Kits to Engineers, Schools and Hobbyists. Capacitos, filters, inductors, qrp products

PIC Simulator IDE - Powerful application that supplies PIC developers with user-friendly graphical development environment for Windows with integrated simulator (emulator), Basic compiler, assembler, disassembler and debugge

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

Alternate Power Sources - Article about alternate power sources, like portable generators, solar panels, batteries and wind turbines

Class C Amplifier Matching - QST Article on what you should know about matching networks for class C RF power amplifiers

Nature of Source of Power in Amplifiers - On the Nature of the Source of Power in Class-B and -C RF A mplifiers by W2DU

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.

5-band RF Power Amplifier - This project uses a widely available IRF510 MOSFET, work on HF 80, 40, 30, 20 and 17 meter bands

WA2EBY Mosfet Amplifier - A Broadtband HF Amplifier Using Low-Cost Power MOSFETs

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

GS-35B 6 meter amplifier - VHF power amplifier for 50MHz using GS-35B tubes, output 1500 W with 75 W input

2 meters Power Amplifiers - Several 144 MHz Power Amplifier by YT1AR using GI7B GS31B GS35B GU34B

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.

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

ICOM IC-E90 Adapter - Adapter power supply for IC-E90 by IW0HEX

A 40 meter SSB QRP transceiver - This transceiver was conceived as a power-efficient, small, lighweight unit to be carried in the backpack, along with antenna and battery.

QRP AM CW transmitter - A simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator