homebrew amp

A Short Back Fire antenna - A Short Back Fire antenna improved for Wireless-LAN applications

Radioclub of Campina - Radioclub from Campina city in Romania

Murray State University Ham Radio Club - A recognized organization of Murray State University providing programs and activities that promote interest in Amateur Radio within the campus and community.

University of Idaho Amateur Radio Club - W7UQ is one of the oldest organizations on campus, dating back to 1929. Its goal is to provide a way for UI students, staff and faculty to become involved in ham radio.

Hampton Police & Fire Dept - Live dispatch audio from the Hampton Police and Fire Department by www.hrconnect.com

g3vdz/mm - maritime mobile station, with sound sample in audio wave files

KEPS Equipments for AO40 downlink - Complete receive system, downconverters, dishes, feeds and preamplifiers for AO40 satellite users

WD7S Productions - A collection of kits for control and protection of homebrew linear amplifiers

Empower RF Systems - We offer a large selection of standard and custom High Power RF and Microwave amplifiers for broadband, general communication, matched band, and personal communication markets.

How to select an amplifier - Thierry LOMBRY, ON4SKY, develops in three long articles all you need to know about amplification, and how to seletc an HF and a solid-state amplifier, with pictures.

Adventures in GPS antenna construction - Adventures in amplified GPS antenna construction; an experiment

The Quack Shack CB Shop - CB Radio and Ham Radio outlet. Accessories, amplifiers, mounting brackets, power supplies, GMRS, FRS, scanners, microphones,and more

YagiCAD - A freeware software package for Yagi design. This webpage also contains many sample and standard antenna downloads for experimentation.

Tube Amplifier data and tech info - Source of common model manuals and amateur help on amplifier problems for the amateur bands, Discussion of vacuum tube amplifiers. Technical information and discussion of obselete tube replacement.

SP5GJN - HF Power Amplifiers  ^pop - HF home meade power amplifiers by SP5GJN

A.M. tutorial - This tutorial is designed to help explain some of the concepts involved in RF power measurement for amplitute modulated signals.

F6BON Homebrew - Spectrum alalyzer, uhf shf test equipment

W7IUV HF Preamplifier - Schematic and pictures of a W7IUV preamplifier

2m Band VHF antenna pre-amplifier - Homebrew pre-amp for 144-146 MHz amateur band and OSCAR Satellites, using BF981 Dual-gate MosFet. Gain ~15 dB, NF=1dB.

VHF UHF preamp - ON6MU project for a vhf uhf preamplifier

6m Preamp - A dead easy 50 mhz preamp by VK3CJS

Garex VHF preamp - It is available for spot frequencies in the range 40 - 250MHz, where a typical gain of 26dB can be achieved

Homebrew QRP SSB Transceiver  ^pop - This page describes a homebrew QRP SSB transceiver built by WB9IPA.

SWR bridge - This SWR bridge works by sampling the amount of power flowing in each direction along the aerial feeder.

Tube Amps forum - Discussion of vacuum tube amplifiers. Technical information and discussion of obselete tube replacement