amp kits

Photos of amplifiers - Dave made pictures of amplifiers

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

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.

4CX1500 - This is a 4CX1500B grid driven amplifier that is built like a tank. The unit is considerably over designed as can be seen in the pictures documenting the construction

HF QRP Lin Ampl - HF QRP Linear Amplifier with 2x 2SC2166 + 2x 2SC1969 Push Pull Transistors (13.8V)

VE6FI 4-1000a amplifier - 15-160 meters HF power amplifier

ON7WJ Amplifier 500 watt

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.

Medium Power Amplifiers for 24Ghz - By John Hazell G8ACE

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

SP5GJN HF amplifiers & CW Keys - Home made HF power amplifiers and CW Keys & Paddles

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

Digital QRP SWR & Power meter - A KD1JV Melt solder kit, a swr and power meter operating from 160 to 6 meters ideal for portable and field use