813 linear

Compact Top Band antennas - Modeling compact 160 meter antennas, inverted L, half wave dipoles and linearly loaded dipole

GB Hardware & Software - HF Linear Amplifiers, maker of the HAL600 Atlantic atomatic HF Amplifier

Linear Amp UK Amplifiers  ^new - Linear Amp UK manufacture a range of high quality linear amplifiers for amateur and commercial use. Production includes HF, VHF and UHF amplifiers.

Longwave Station - DF0WD DL4YHF Longwave Station include a linear transverter and antenna tuner

Heathkit SB-220 Meter Repair - Repairt a Heathkit SB-220 Linear Amplifier with a bad Plate Voltage meter

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

M0KGK Yaesu FL-2100Z page - A page dedicated to Yaesu FL-2100Z linear amplifier for amateur hf bands

Yaesu FL-2100 linear amplifier - Repairing a Yaesu FL-2100 having both the 572b failed

Yaesu FL2100Z operating tips - The Yaesu FL2100Z is a HF linear amplifier rated for 1200W PEP input, and using two 572B triode tubes. This article explores the recommended operating conditions, and alternatives.

FL-2100Z review - Review of the Yaesu FL-2100Z Linear Power Amplifier

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

Dentron Clipperton L linear Modification for 160m - Modifying Dentron Clipperton L linear for better Top Band operation

811 Linear Amplifier project - A lower power desktop linear with integrated 120vac power supply. This, very compact, dual 811 version will deliver about 300 watts output. Covers all bands including WARC bands.

Repairing an FL2000B linear amplifier - Restoring a Yaesu FL2000B amplifier by M0DGQ

60 W Linear Amplifier Circuit  ^updated - The 60 Watt linear amplifier is simple all solid state circuit using power mosfet IRF840.

A 600 Watt homebrew Solid State Amplifier - A solid state linear based on EB104 Motorola Engineering Bulletin by Helge Granberg. It uses 4 MRF150 FETs in push-pull parallel to acheive 600 Watts from about 6 Watts drive

Using cheap tetrodes in amplifiers - This article is written to dispel some of the misconceptions and misunderstandings about some of the tetrode based linear amplifiers, which are currently available on the amateur market.

1KW 2 Meter Amplifier - 2 meter kilowatt linear amplifier

1KW 222 Mhz Amplifier - 222 MHz kilowatt linear amplifier

70 Mhz Linear Amplifier - A 4 meter RF Amplifier project by G5VZ, design, development and construction

VHF 200W Amplifier project - 2m 200 Watt linear using a 4CX250B

6m 200 Watt linear using a 4CX250B - This 50 MHz RF Amplifier uses a 4CX250b forced air cooled tetrode and produces 250 W for a drive level of approximately 3 W.

2m 400 Watt linear using two 4CX250B - This is the classic push-pull 2m linear amplifier featured in the various RSGB handbooks, 3 W input, can produce 500W of linear pep

2m 200 Watt linear using a 4CX250B - This VHF RF linear uses a 4CX250b forced air cooled tetrode and produces 250 W output for a drive level of approximately 3 W