amp keyer

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

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.

DL9OAO homebrew amplfiers site - Includes a webcam and homebrewing amplifiers resources

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.

SB220 SB221 arcing problems improvements mods - This article explores the claim an amplifier might arc from a parasitic oscillation, damaging capacitors, bandswitches, or other components.

ON7WJ Amplifier 1000 watt

500 WATT PA by SM0VPO  ^pop - 500W Power Amplifier by Harry Lythall - SM0VPO

11 KW Linear amplifier by I0JX  ^pop - Use 4CX10000D / 8171, RF output power of 11 KW in key-down carrier on all bands. Power was measured with a Bird 4712 wattmeter and a 25 KW slug

Russian amplifier for 160 and 6 meters - by Tony I0JX

Vacuum Tube Amps - How the tube converts DC to RF Power

Introduction to amplifier design - These tutorials will teach you in very easy steps how to design A class amplifiers.

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

KD5FZX 23 CM GS-15B PA - GS23B / 4CX1600U 1KW Power amplifier for 23cm

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

GS35B-Amplifier - 144 MHz GS35b Amplifier

LZ2US-3 144 Mhz ampl - Using 2 x GU74B / 4CX800A

DL4MEA 144MHz and 432MHz Amplifier - 144 and 432 Mhz GS35b High Power Amplifier

144 MHz 1.2 Kilowatt Amplifier - 144 MHz Kilowatt Amplifier with a Gu74b.

GI-7 on 2m - Schematic & drawing for a GI-7b 2m linear amplifier

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

Morse Code Beacon Keyer - This circuit stores a single morse code message as bits in an EPROM chip, the message is sent to a relay which can key a CW transmitter.

Hight voltage power supply - High Voltage Supply for GS 35B Amplifier