100W Guitar Amplifier Using TL072

This is a guitar amplifier using TL072. This amplifier can amplify up to 100W. Feature : 100W amplification, Simple Circutry, Elegant design, provides excellent tonal range, suit any style of playing, provide a huge amount of gain. Component : Resistor, TL072, Capacitor, Potentiometer, BC549 transistor, Switch, Diode, Zener diodes.[sound.westhost.com]

Ultrasonic Range & Imager Circuit

Description : The following circuit is ultrasonic range and imager circuit. Feature : one piezoelectric tranducer for tramsmit & receive, range of 2.5m, high gain. Component : crystal, resistor, capacitor, 1N4149 diode, 1N4148 diode, BC557 transistor, BC549 transistor, BF245, 4016, PIC12C509. [ele.uva.es]