homebrew amp

7 element Yagi for 70MHz - Build a 7 Element 4M (70MHz) Beam By Paul Graver, M1CCZ

LU9DPD Daniel - Homebrew, antenas, balunes, expediciones, circuitos, electrónica, torres, fotos y relatos, todo referente a radioafición, radioaficionados y radioamateur

W1JKS homebrew Buddipole - An homebrew buddipole antenna for field usage made with common pvc poles and other easy to find material

2 Element Quad Project - Homebrew quad antenna project you can build for very little cost for 12,11CB,10 meters and higher frequencies

W6RK County Hunting Spots - County Hunting Spots in the Web

HamPage.com - Amateur radio start page (or "jump page") with categorized links on one screen-size page, making HamPage.com a time-saving default browser page for ham shack computers.

ARTRA QRP Kits - Lots of homebrew kits, you can buy kits or download as free, Association des Réalisation et Techniques RadioAmateurs. Transceivers, filters, converters, frequency meters, antenna analyzers, ATV receivers, interfaces

JWM Engineering Group - Top quality Microwave Phase Locked oscillators for DB6NT, DEMI and homebrew microwave transverters, and other support products.

QRP homebrew equipment by py2ohh - py2ohh homebrewing of receivers, transmiters and Test Equipment for ham and swl, using cheap, easy to find or surplus components

FT-1000MP Band Select Output and Amp Keying Interface - FT-1000MP Automatic Band Selection Interface Bob Wolbert, K6XX

Morse Pilot - Morse Pilot is a popular and very comprehensive freeware Morse code tutor, trainer with decoder and encoder functions. Morse Pilot is intended for personal training, for example for radio ham or aviation examinations.

9A3TN homebrew - Home made antennas and rotators

Audio Preamp - Easy circuit that provide good gain to weak audio signals

EI7BA's Amateur Radio Pages - Antennas and homebrew ancilliary equipment

F5RDH homebrew projects - some interestig homebrew projects

Homebrew equipment by JR3XUH - More than 40 of equipment; rigs and test devices.

144 MHz preamplifier with BF981 - Design of a preamplifier for 144 MHz with 1 dB NF and 23 dB gain using BF981. This amplifier is using a low cost silicon MOSFET (BF981 from Philips) to give more than 20 dB gain with around 1 dB noise figure on 2 meter.

LNK Receiver Preamp - It is tempting to hope that a preamp can make any receiver more sensitive, in any situation. But, it is important to understand what happens when you add a preamp before a receiver.

23cm dual stage preamp - A modification / combination of the DJ9 BV & I5TDJ 144 MHz preamp designs

Motorola Micor Highband Preamp - Make 150.8 - 174 Mcs. RF Preamp properly tune the Two Meter ham band.

Low noise preamplifiers  ^pop - Lot of projects of preamplifies from HF to VHF and UHF by yu1aw

U301 FET preamplifier - This FET preamplifier has been around for almost 25 years. It is extremely reliable and can handle several watts directly into either the input or the output without failure.

23 cm GaAs FET preamplifier - On 23cm the best way to obtain a good RX-sensitivity is to use a GaAs-FET in the front-end, since these devices show very low noise figures.

EMI from RF-Driven Lamps - Information about RF driven lamps

EMI from Lamps - Radio Frequency Interference To/From touch lamps and dimmers