Amplifiers

A low cost 600 watt ultra-linear amplifier - This compact little amplifier is the brain-child of Pat Murdoch, ZL1AXB, in Auckland, New Zealand. It is only 11" wide, 4" high, and 9" deep. Operates for 40, 20, 17, 15, 12, and 10m

11Meter Amps - This group is here to discuss linear amplifiers used on the 11 meter citizens band.

WB0NNI Home Brew HF Amps and Tutorials - Tutorials and other information on designing and building hf amplifiers. Includes tube data and amplifier projects.

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

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

WV7U - Hank's Amp Pages - WV7U YC156 and 3CPX800 amplifier projects. See pictures, schematics, test data, links, and more!

QRO via Russia - Power amplifiers from amateur radio operators around the world which are designed/built using Russian tubes.

Universal LF/MF Preamplifier - "A ""Universal Antenna Preamplifier"" design, in Web page form. Works with long wires, loops, or whips. For longwave and medium wave."

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.

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

Photos of amplifiers - Dave made pictures of amplifiers

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.

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.

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

Tube-type amplifier FAQs. - This page should help the less experienced users solve common problems and questions about HF tube-type amplifiers by Matt Erickson KK5DR

Tuning up a tube-type amplifier properly - This guide is primarily written for those who are new to HF tube-type amps, or anyone who wishes to get the most out a Linear amplifier.

Understanding Linear Amplifiers - Understanding Solid State Linear Amplifiers

Universal LF/MF Preamplifier - "A ""Universal Antenna Preamplifier"" design, in Web page form. Works with long wires, loops, or whips. For longwave and medium wave."

Using VNA to adjust Linear amplifiers  ^updated - Linear amplifiers cold adjustments with network analyser (VNA)

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

What makes a Good tube-type HF amplifier? - This article is written for the ham who is about to purchase their first HF amplifier or wants to buy an elite class of amplifier that could last the rest of their ham career.

WV7U - Hank's Amp Pages - WV7U YC156 and 3CPX800 amplifier projects. See pictures, schematics, test data, links, and more!

WZ1V's VHF modifications page - A collection of modifications to the AM6154/55 linear amplifier