Circuit Lake

Electronic Project and Circuit Collection

Basic


Crystal Radio With External Speaker

April 07, 2011 By: admin Category: Analog, Audio, Basic, Ham Radio No Comments →

Crystal radio is the simplest type of radio receiver, and can be handmade with a few inexpensive parts, like an antenna wire, tuning coil of copper wire, crystal detector and earphones. It needs no battery or power source and runs on the power received from radio waves by a long wire antenna.

Solar Powered Mirror Bot

May 20, 2009 By: admin Category: Basic, Project, Robotic No Comments →

This solar powered artbot based on Solar Engine. The circuit consist of two transistors, one flashing led, one resistor, one capacitor. If there is a light the mirror will rotate and if no light the mirror will stop. I think, It’s nice and fun solar powered electronic project.

Reverse Engineering with Photoshop

November 27, 2008 By: admin Category: Basic, Tutorial No Comments →

If you want to learn Reverse Engineering you can use photoshop as aid tools. For example, This 12-keys keypad failed after years of daily use. No schematic or replacement parts from the original manufacturer. The only option was to replace it with an off-the-shelf telephone-style keyboard.Following the maze of each and every PCB track in […]

Simple Metronome Project

May 03, 2008 By: admin Category: Audio, Basic, Project No Comments →

Daniel designs this Metronome with a few simple electronic components.The Metronome is any device that produces a regulated audible and/or visual pulse, usually used to establish a steady beat, or tempo, measured in beats-per-minute (BPM) for the performance of musical compositions. It is an invaluable practice tool for musicians that goes back hundreds of years. […]