homemade amplifiers

QRP Inverted V Dipole antenna - An homemade QRP Inverted V dipole antenna for 40 20 17 and 15 meter band

Homemade Collapsable Yagi - Homemade Folding, Collapsable, Spring Mounted Element Yagi antenna

Dish for 10 GHz - Homemade dish antenna for 3 cm band

Portable Dish Antenna - Homemade portable dish antenna for 13 cm band

King Conversions - Amplifier repair and conversion, specialize in converting HF amplifiers to operate as monoband amps on 50 MHz

TPL Com - VHF RF power amplifiers manufacturerr

Italy Amplifier - RF power amplifiers by Italy Amplifier

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

Alpin Amplifiers - ALPIN is a German-Bulgarian company, founded with the purpose to develop and produce ham-radio equipment. Makers of Aplin 100 and Alpin 200 ham radio RF power amplifiers

Clifton Laboratories - Band Reject Filters, Bandpass Filter, Active Antennas, amplifiers and preamplifiers

Eletec Broadcast - EB Broadcast provides Audio, Studio and Transmission Equipment, FM Transmitter, rf power amplifiers, audio processor for radio stations.

Elenos - ELENOS is the leader company for fm transmitters, amplifiers, radio broadcast equipment and custom systems.

Hittite Microwave Corporation - Amplifiers, filters, attenuators, mixers, PLL, switches and frequency dividers, signal generators, power detectors, transimpedance amplifiers, variable gain amplifiers and more

Hilberling - Hilberling GmbH based in Rendsburg Germany manufacturer of HF VHF Transceivers, rf power amplifiers, power combines, RF generators, power supplies, Antenna Diplexers and Triplexers

HF Amplifiers comparison chart - Comparison table of most popular RF HF Power Amplifiers in the US market

Acom 1000 Acom 2000A Review - RSGB Review of ACOM 1000 and ACOM 2000A amplifiers

10/12 meter Mod for Ameritron 811 - 10 meter modification for the Ameritron AL-811 and AL-811H amplifier. This mod apply to other Ameritron AL Series RF amplifiers and allow extension to 10 and 12 meters band.

Ameritron AL-811H Reviews - eHam reviews of the Ameritron AL-811H HF power amplifiers

FT-817 Automatic Band Select and Serial Interface - This project is an interface box for the Yaesu FT-817 that includes a band output port, a computer serial interface, and a remote interface for the FL-7000 solid state power amplifiers.

Marine Audio Direct - From marine stereo, to marine radio ,cellular amplifiers,cb radios, marine antenna and more marine radio products online shop

Homemade Antenna Rotator Controller - The Antenna Rotator Controller is unique in that it senses, displays, and controls to the earth’s true magnetic field. The compass sensor, mounted in a waterproof enclosure, is attached to the mast and sends its signal to a microcontroller. By kg4jjh

A Potpourri of Audio Amplifiers - A collection of audio amplifier projects by N1HFX

Anatomy of a Loudspeaker - There are a number of important technical issues relating to the matching of speakers to amplifiers, and to the wiring of multiple speaker systems

N1AL Ultra-lightweight Morse Keyer - Homemade ultra-lightweight Morse code keyer paddle

A Homemade Signal Generator - Homebrewing a 3 to 30 Mhz Signal Generator, project and schematic diagram