813 linear

VK2ABQ Mini-Beam antennas - A compact Beam Antenna That Can Be Built At Home. Made with lightweight wooden "X" frame with two folded and linear loaded wire elements. The two elements are approximately a half-wave each.

Dipole for 40 Meters by K4VX - Here’s a very simple and practical way to make a short but efficient 40-meter dipole. The K4VX Linear-Loaded Dipole for 7 MHz

70cm colinear - An home made 70 cm colinear antenna at M1KTA blog

2.4 GHz Collinear antenna - 2.4 GHz sleeve co-linear antenna construction details

Stacking broadside collinear - One popular rumor or thought is that antenna gain doubles every time we double the number of elements

RF Power Amplifiers - RF Power develope, produce and sell high quality solid state RF Power linear amplifiers

Antennaworks amplifiers - Manufacturer of 2m 2500 Watt linear amplifier

NP Technologies Inc - Design, develop, test and manufacture a wide range of Amplifier products including highly linear class A Broad Band, Cell Band, Pulse, AM & FM broadcast and Military VHF

ACOM 1010 QST Review - Acom 1010 HF linear Amplifier QST Review december 2006

Ameritron AL-811 Product Reviews - eHam reviews for the Ameritron AL-811 linear amplifier

Ameritron AL-811H Tuning - Ameritron Al-811H Tuning for Power/Dissipation/Linearity, and More Generally 811A Tube Amps in Grounded Grid

TL-922 Linear Project - Collection of Kenwood TL-922 linear amplifier modifications

iProp - iProp is a propagation simulator based on the 90's work of the FTZ Darmstadt

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.

Triode & Tetrode boards - A lot of good things, not for QRP fans.

JBOT QRP Linear Amplifier - An SSB linear amplifier made from Just a Bunch of Transistors

Understanding Linear Amplifiers - Understanding Solid State Linear Amplifiers

1500 Watt Solid State HF Amplifier  ^updated - This is a project to develop an Open Source reference design for a 1500 watt solid state linear amplifier for 10 through 160 meters by K6IF

Transistor PA Biasing - Here is a simple circuit that can deliver the peak base current needed for linear ssb operation

Selecting the Right Tube - Selecting a tube around which to build a linear amplifier.

Transistor PA Biasing - Here is a simple circuit that can deliver the peak base current needed for linear ssb operation

400W VHF Linear - A 400 W 144 MHz GI7b Linear amplifier

VHF Linear Amplifier by SV1BSX - There is not a personal design on this page, just I've transfered useful notes from PHILIPS RF Bipolar Transistors - Data HandBook about BLY89C VHF Power transistor, which is very popular among Amateur Radio homebrewers

1.5KW 6m Low Pass Filter - This filter is designed to follow a FULL legal limit, GS-35B, 6m linear amplifier. Designed and built by Bill Jones, K8CU

Portable RF Sniffer and Power Meter - Whether we are tuning up homebrew equipment, checking antenna VSWR, adjusting a linear amplifier, or just monitoring output power during a contest, almost all aspects of ham operation can use a power meter. Paul Wade W1GHZ