uhf amplifiers

3 Element cubic quad for UHF - Article in spanish with design and descriptio of a 3 elements cubic antenna for UHF

Antenna Gain Comparison System - This device goal is to optimize homebrew antenna for the V/UHF band. This tool, is based itself on the simultaneously comparison between two antenna, directly in dB. by IK0BDO

EUHFC - Slovenia contest club EU HF Championship

6 Meters and Up: SSB/CW DX - This is a group for amateur radio operators interested in VHF and UHF SSB and CW, primarily in North America. It's intended for general discussions of V/UHF operation, beacon information, reports of tropo and Es openings and anything else of interest to V/UHF DX enthusiasts

Photos of amplifiers - Dave made pictures of amplifiers

DL9OAO homebrew amplfiers site - Includes a webcam and homebrewing amplifiers resources

CommsAudit - Commsaudit uk, i/q quadrature , hf receivers, rf, multicoupler, multicouplers, switch matrix, antenna matrices, masthead amplifier,, vhf receiver, uhf,

Lunar-Link Amplifiers - Complete 70 cm amp by lunar link systems

Amplitec linear amplifiers - HF VHF UHF amplifiers, designed by hams for hams, and morse keys manufacturer

RF Amplifiers - Solid State and TWT Amplifiers From 1 MHz to 40 GHz with Power Levels from .1 mil Watt to 2.5 Kw

Rake amplifiers - Leitner elettronica manufacturer of rake linear amplifiers

Worth-More Electronics  ^updated - HF RF Amplifiers made in USA

UHF Reject filter - This filter is a 0.1 dB Tschebychev lowpass with a rejection of 90 dB or better at 430 MHz, and 0.2 dB insertion loss at 72 MHz.

EGAntennes - Distributor of PKW antennas and Reimesch Kommunikationssysteme RF amplifiers. Manufacturer of HF wire antennas Based in France.

Voice descrambler - This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band. Use it only if legally permitted in your country. I assume no responsabilities deriving from its use. Standard disclaimer applies

AG6K Richard L. Measures - Articles and original manuscripts on RF power amplifiers

Adding 160M to HF amplifiers - updated original manuscript, article published in January 1989 QST by Richard L. Measures, AG6K, April 1988

HF Tetrode Linear Amplifiers - I4FAF etrode Tube Linear Amplifier experience

4CX1500 - This is a 4CX1500B grid driven amplifier that is built like a tank. The unit is considerably over designed as can be seen in the pictures documenting the construction

Introduction to amplifier design - These tutorials will teach you in very easy steps how to design A class amplifiers.

Negative feedback output circuit - Negative feedback is often referred to as shunt feedback in conjunction with emitter degeneration.

Medium Power Amplifiers for 24Ghz - By John Hazell G8ACE

IK8MKK Home-Made equipment - Two 50 Mhz amplifiers and antenna switch

KI0LE Amplifiers and Preamps - Picture gallery of vhf uhf amplifiers

SP5GJN HF amplifiers & CW Keys - Home made HF power amplifiers and CW Keys & Paddles