homebrew amp

20 meters Cage Dipole - Cage Dipole is based on the fact that a wireframe does emulate a tubing of the same diameter, supposed that the wires in the frame are close enough to resemble a solid surface.

Small Multiband IEK Antenna - A multi band version of the EH antenna by Emilio S. Campus IS0IEK

Single Coil Z Match - Single Coil Z Match, circuit Diagram and homebrewing notes

Receiving Antenna Design - Learn basic theory on antennas, and notes on homebrewing efficient shortwave antennas

Wifi: Building Yagi Antennas - Example and resources of 2.4 Ghz yagi antenna plans

Granta Contest Group - HF amplifier - The Granta Contest Group was founded in 1997 by Mark G4AXX, Colin G4CWH, Simon G4EAG, Andy G4KNO. The Group gets it's name from the River Granta (or Cam), which passes through Cambridgeshire and Essex. Using is a 160-10m "desktop kilowatt" linear amplifier using an Eimac 4CX1000A tetrode

UC Irvine Amateur Radio Club - K6UCI, Campus Amateur Radio Emergency Services for UCI.

Lunar-Link Amplifiers - Complete 70 cm amp by lunar link systems

Amplitec linear amplifiers - HF VHF UHF amplifiers, designed by hams for hams, and morse keys manufacturer

RF Amplifiers - Solid State and TWT Amplifiers From 1 MHz to 40 GHz with Power Levels from .1 mil Watt to 2.5 Kw

HAMCALC - The function that is actually implemented is a QRB and QTF calculator, but the idea is to make a complete toolkit with DXCC database, logging and so on.

K5LAD's 4-1000A Amplifier

OZ1DPR Gallery - Linear amplifer picture gallery

Collins TRC-75 - Autotune Linear Amplifier

IK5MEN HF amplifier 10-160m. - Italian page including pictures schematics diagrams of an home made linear amplifier using four EL509 in parallel. Output power is about 700W.

G3YXM 500 W PA - 40-80-160 meter band linear amplifier

SUPERVOX - S 300 - AM CW SSB linear amplifier for 160 80 and 40 meter band

Negative feedback output circuit - Negative feedback is often referred to as shunt feedback in conjunction with emitter degeneration.

13cm RF Amplifier - This amplifier uses two 60w Spectrian amplifier boards with the usual input and output hybrid coupler and combiner.

432 MHz Power amp - by RA3YCR

The 50MHz Assistant - Preamp & Power Amp By Alkberto, I0XGR

GJ4ICD's 8877 50MHz Amplifier - A Compact 8877 50MHz amplifier and Power supply

IK8MKK Home-Made equipment - Two 50 Mhz amplifiers and antenna switch

KI0LE Amplifiers and Preamps - Picture gallery of vhf uhf amplifiers

YU1AW 2m PA - GI-7B, GS-31B & GS-35B power amps, 144 MHz QRO