arp amplifiers

Photos of amplifiers - Dave made pictures of amplifiers

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

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

Rake amplifiers - Leitner elettronica manufacturer of rake linear amplifiers

Worth-More Electronics  ^updated - HF RF Amplifiers made in USA

LNA Technology - LNA Technology High Performance Low Noise Preamplifiers for Amateur Radio, VHF-UHF weak signal, DX, EME, and commercial applications.

HA1YA Mechanics & Electronics Inc. - Specializes in manufacture of middle and high power RF decks and high quality linear amplifiers with metall ceramic tubes for HF, 6m, 2m and 70 cm bands. Transverters, power supplies and control units

Discovery Power Amplifiers - The Discovery series of amplifiers are designed and built in the UK by Linear Amp UK Ltd, one of the world’s leading amplifier manufacturers, specializing in high power RF tube amplifiers. The amplifiers use large GS31 or GS35 ceramic triode tubes. Band coverage 6m, 2m and 70 cms

SB-220 SB-221 Heathkit Amplifiers - SB-220 or SB-221 Heathkit Amp Using Eimac's 3-500Z - K0GKD

QSK for the TL-922 and SB-220 mods - Beautifully constructed amplifiers. Unfortunately, are not suited for high speed T-R switching, a necessary attribute for operating AMTOR, QSK-CW, or SSB-VOX modes.

EGAntennes - Distributor of PKW antennas and Reimesch Kommunikationssysteme RF amplifiers. Manufacturer of HF wire antennas Based in France.

AG6K Richard L. Measures - Articles and original manuscripts on RF power amplifiers

JA3MHV Amplifiers - 4CX1000A x2 AB1GG Power Amplifier, 21MHz 15W and 3.5/7MHz 20W SSB Transceiver by JA3MHV, 50/144/435MHz 80W Linear Amplifier

Adding 160M to HF amplifiers - updated original manuscript, article published in January 1989 QST by Richard L. Measures, AG6K, April 1988

HF Tetrode Linear Amplifiers - I4FAF etrode Tube Linear Amplifier experience

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

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

PA7TA RF Amplifiers - VHF UHF Amplifiers

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

KI0LE Amplifiers and Preamps - Picture gallery of vhf uhf amplifiers

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