How to build a very cheap but full featured Sound Card Oscilloscope Build Better Electronics Projects By: Steve Garratt

Electronics Project At Home DIY Electronics

Simple Transistor As An Amplifier

Build a simple one transistor amplifier circuit that you can use in many projects where you need to amplify small signals. A circuit like this could form the basis of a high quality audio preamplifier and it only uses five components. There is a catch though. Find out what it is in this project article.

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Darlington Transistor Touch Switch Simple Science Project

Here is a simple two transistor darlington transistor touch switch that you can build easily on a solderless breadboard. This build follows on from the single transistor touch switch project to significantly increase the sensitivity of the touch sensor. More...

Transistor Touch Switch Simple Science Project

Here is a simple one transistor touch switch that you can build easily on a solderless breadboard. Learn how to build a circuit that turns on an LED lamp simply by placing your finger across two wires.

This project illustrates how you can use a transistor as a solid state switch. No moving parts. Exept for your finger of course. More...

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