Preamp

A simple 137 kHz antenna preamplifier to make your FT 817 and others useable on ...

Electronic circuit and components layout fot this VHF Preamp

Design of a preamplifier for 144 MHz with 1 dB NF and 23 dB gain ...

An home made low noise preamplifier project for 144 MHz with detailed circuit diagram The ...

A preamplifier project based on Rainer DJ9BV project, in french

KD9JQ 2 meter GaAsFET preamplifier by KD9JQ

On 23cm the best way to obtain a good RX sensitivity is to use a ...

A low noise amplifier for the 23cm band with schematic diagram picutes and instructions article ...

Here are some hints and tips for construction of a good preamp for satellite work ...

An easy to build with a cheap HEMT FET Transistor Low noise preamplifier with FHX35LG ...

The prototype for this amplifier was originally designed for 70cm and was used on the ...

A ham radio home made preamplifier for 50 MHz and 70 MHz bands

A dead easy 50 mhz preamp by VK3CJS

The circuit is simple designed with a low component count and an inherent simplicity in ...

Low signal, noise-high AC gain preamplifier

Page on amplification topics From vacuum tubes to various components discussion on stability and arcin ...

A simple & effective antenna pre-amp for 10m. Band (28-29.7 MHz)

How to get the most from attenuators and preamps

Easy circuit that provide good gain to weak audio signals

Design guidelines for Op Amp audio preamplifier circuits by Mike Martell N1HFX

Homebrew with CF300 DGMF with about .24 dBD gain

There are many designs for building preamps each with their own advantages and disvantages In ...

General purpose RF Wideband PreAmp based on BSX 20 transistor with a frequency range 14 ...

Tests on a preamplifier for 50 MHz installed right at the feedpoint of the antenna ...

A universal LF/MF preamplifier by Lyle Koehler, K0LR

ON6MU Low Power amplifier

A microphone preamplifier schematic for hand-helds by ON6MU

Mic Preamp, schematic by Anthony Gargasz, KB8WOW

Mizuho Tsushin Co was a small Japanese manufacturer of QRP radios and kits shortwave receiver ...

Angle Linear has been producing GaAs FET preamplifiers since 1980

20db gain 144 Mhz preamplifier by Harry Popov LZ1BB

Who needs a GaAsFET? Tuning, constructions and Packaging by Paul Wade

Preamp & Power Amp By Alkberto, I0XGR

Design Guidelines for Bipolar Transistor Audio Preamplifier Circuits By Mike Martell N1HFX

The TMB 1 is an RF amplifier unit receiving accessory that can be used with ...

This FET preamplifier has been around for almost 25 years It is extremely reliable and ...

Extremely reliable FET preamplifier can handle several watts directly into either the input or the ...

Low Noise Antenna pre-amp for SAT, EME & DX-ing

2m 70cm 23cm Low noise Amplifiers 3 Low noise amplifiers Outdoor unit with DB6NT parts ...

ON6MU project for a vhf uhf preamplifier

Schematic and pictures of a W7IUV preamplifier

Pre amplifier using a 2N5109 for the 160 meters band

Wideband VHF/UHF/SHF monolithic PreAmp based on MARx-series by ON6MU