About this document
Simple JFET Audio Preamp Design by Jose Mesquita is a document available to read on EtoBox.
This document describes the design of a simple, low-noise, 3-transistor audio preamplifier circuit using a JFET input transistor. The circuit aims to operate with low current draw from a single battery for over 300 hours, have high input impedance, fixed gain of 30dB, and be cascadable for comparing noise performance between different JFETs. A prototype board is shown to allow testing different transistors. Simulations show the circuit has a wide bandwidth up to 100kHz and low distortion of 0.005% with an i
- Author
- Jose Mesquita
- Language
- EN