amplifiers 2m

2M Quad Antenna - An inexpensive and easy to build Quad antenna project edited by AA1PG

Cobweb Multiband Antenna by 2M0CSP - A multiband antenna 10 - 20m lots of photos

160 80 12m Dipole - How complicated can a dipole be? Well, pretty complicated! Read on for details.

Homemade WARC Dipole - Here you can find all dimensions to make your own three band dipole for 30m – 17m – 12m. ON4AFU describe here a rigid dipole with dimensions and picture.

A simple 2m Moxon Antenna - Building a Moxon antenna for 144 Mhz by K2ZS

Slim Jim Antenna for 144 Mhz - A slim Jim antenna plan for two meters band

HF-series Power Amplifier - Manufacture HF-serie power amplifiers for global radio amateurs. Provide two models: manual HF2000DX and automatic HF2011DX-A

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

Kronotek  ^new - European manufacturer of transverters for VHF and microwaves bands, transverters and amplifiers for 4 m, 23 cm, 13 cm and 3 cm bands. We have articles for 4 m, 23 cm, 13 cm and 3 cm bands.

HF Projects Kits  ^new - Provide service, quality home construction projects, travel antennas, masts and bases, hf and vhf amplifiers, low pass filters and z-match tuners

Alpha 9500 blower problem - How to reduce noise on Alpha 9500 amplifier fan.

RF Amplifiers Reviews  ^new - A complete HF power amplifiers reviews by Matt Erickson KK5DR. Each amplifier is rated with a vote and a short comment.

SkookumLogger - SkookumLogger is a free contest logging program for Mac OS X 10.7 (Lion) or later, supporting CW and SSB events on the six HF contest bands plus 6m, 4m, 2m, and 70cm. By K1GQ

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

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

2m 400 Watt linear using two 4CX250B  ^new - 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  ^new - This VHF RF linear uses a 4CX250b forced air cooled tetrode and produces 250 W output for a drive level of approximately 3 W

CW transceiver - An homemade HF, 6m, 2m SSB CW transceiver project