homebrew amplifier

YLRADIO - Full wave delta loop - This Delta Loop is a three-sided antenna suspended high in the air by vertical supports, such as tall evergreen trees. Recommended height is 40 feet or more at highest point, but higher is better.

Homebrew Balun Case - Balun case construction, tipically to host toroid cores. Size of case depends on power to handle. By DL5DBM

Homebrew A 4 To 1 Balun - How to build a to 1 balun by N1HFX

Homebrew Hex Wire Beam Antenna - Hombrewinf the hex beam antenna by W6OT

LU9DPD Windom dipole - A multiband windom dipole antenna for 80 40 20 10 meters, feeded with a home made 4:1 balun, in spanish.

A homebrew 10-element 900 MHz quagi - A 10 elements quagi antenna for 900 mhz

CSVHFS Antenna Gain Measurements - The Central States VHF Society has conducted Antenna Gain Measurements since its inception in 1967. Comparisons between commercial and homebrew antennas, between different homebrew designs, and between different commercial designs. Mostly VHF UHF and up antennas.

Homebrew your own inductors  ^pop - Can’t find the inductors you need for an antenna, a tuner or amplifier? Build your own—it’s easy! By Robert H. Johns, W3JIP

K0KP 10 Meter QRPp Beacon - Homebrew K0KP 500 Milliwatt Ten Meter Beacon. The beacon is located at the K0KP shack in Fredenberg, Minnesota, USA at Maidenhead grid square EN36VW

JH5LUZ Blog - 1296Mhz EME Station from Japan, includes eme amplifiers pictures

J-Tec - Ham Radio products, Antenna Switches, Receiver Preamplifiers, Preamps

SSB Electronic USA - manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.

Bear Electronics Amplifiers - Manufacturer of big power amplifiers

SPE Amplifiers - SPE Makers of RF power amplifiers like Expert 1K-FA Expert 2K-FA

Communication Concepts, Inc. - Provide components to the amateur who wants to construct their own gear and to the professional who wants to save money and time in prototyping their circuit design, Filters, HF Amplifiers, Splitter Combiners, VHF Amplifiers, ATV

NETCERTUS ampsequencer - Advanced microprocessor driven control board specifically designed to buffer CW key signals while switching the amplifier to transmission, it can also be used to provide proper TX delay timing for RTTY.

House Of Tubes - High-quality brand name tubes ideal for use in audio amplifiers and ham radio equipment at low prices, including used and hard to find tubes.

Nikola Tesla - Nikola Tesla considered inventor of the radio X-rays the vacuum tube amplifier

R7 Vertical Maintenance and Repair - How repair the traps, and then homebrew the rest of the antenna, including the matching box

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

Homebrew 813 Linear Amplifier - 813 Linear Amplifier Project includes many schematics, drawind and assembling construction

Base-Station RF Power-Amplifier Biasing - Power amplifiers used in base stations require biasing for proper RF performance. This article explains the two classes of biasing that are prevalent in the RF industry, analyzes their characteristics, and shows implementations with existing ICs.

10 Ghz 1W Power Amplifier - 1 watt amplifier for 10 ghz made from surplus stuff

2 KW Power Amplifier for 2 meters - 2 KW power amplifier for 144 MHz using the GU84B tube by Paul Chominski WA6PY

144Mhz preamplifier - A preamplifier project based on Rainer DJ9BV project, in french