Archive for September 25th, 2008
Portable Audio Amplifiers
Description Stereo per channel VCC=9V;RL=4?/3W VCC=9V;RL=8?/2W Bridge Application VCC=9V;RL=8?/5W VCC=9V;RL=4?/8W Supply Voltage min = DC3v @ 500mA Supply Voltage max = DC12v @ 500mA Supply Voltage recommended = DC9v @500mA DESCRIPTION Above circuits are based on TEA2025 is a monolithic integrated audio amplifier in a 16-pin plastic dual in line package manufactured by UTC .Circuit [...]
Read Full Post | Make a Comment ( None so far )Portable Mixer
High-quality modular design 9V Battery powered – Very low current drawing Design description: The target of this project was the design of a small portable mixer supplied by a 9V PP3 battery, keeping high quality performance. The mixer is formed assembling three main modules that can be varied in number and/or disposition to suit everyone [...]
Read Full Post | Make a Comment ( None so far )Room Noise Detector
Useful to detect too noisy environments Parts: R1____________10K 1/4W Resistor R2,R3_________22K 1/4W Resistors R4___________100K 1/4W Resistor R5,R9,R10_____56K 1/4W Resistors R6_____________5K6 1/4W Resistor R7___________560R 1/4W Resistor R8_____________2K2 1/4W Resistor R11____________1K 1/4W Resistor R12___________33K 1/4W Resistor R13__________330R 1/4W Resistor C1___________100nF 63V Polyester Capacitor C2____________10΅F 25V Electrolytic Capacitor C3___________470΅F 25V Electrolytic Capacitor C4____________47΅F 25V Electrolytic Capacitor D1_____________5mm. Red [...]
Read Full Post | Make a Comment ( None so far )7 Basics of Good Web Design
By: George Peirson Whether you are just starting a web design project, looking at revamping an existing site, or just wanting to double check the usability of your current web site you should consider these 7 Basics of Good Web Design. These Basics are aimed at new visitors/customers, your repeat customers will be judging your [...]
Read Full Post | Make a Comment ( 1 so far )MySQL connection strings
MySQL ODBC connection strings Open connection to local MySQL database using MySQL ODBC 3.51 Driver “Provider=MSDASQL; DRIVER={MySQL ODBC 3.51Driver}; SERVER= localhost; DATABASE=Your_MySQL_Database; UID= Your_Username; PASSWORD=Your_Password; OPTION=3″ MySQL OLE DB & OleDbConnection (.NET framework) connection strings Open connection to MySQL database: “Provider=MySQLProv;Data Source=Your_MySQL_Database;User Id=Your_Username; Password=Your_Password;”
Read Full Post | Make a Comment ( None so far )Search engine optimization techniques
Optimizing your website is not really that difficult, there are many search engine optimization techniques, or SEO techniques, that can be employed even by a novice webmaster with limited html skills and the will to learn new things. This article will deal with the on page search engine optimization techniques, or seo techniques that you [...]
Read Full Post | Make a Comment ( 4 so far )Optimizing PHP scripts
So you have a huge site with multiple PHP Scripts and you get a load of traffic all of a sudden, when you built the site you didn’t figured 0.01 second load time was fine right? Well, say you get 5,000 visitors daily; that 0.01 can turn into 50 seconds!!! Don’t know how to benchmark [...]
Read Full Post | Make a Comment ( 1 so far )Everything that moves Alarm
A crucial failing of proximity detectors is their unreliable and tricky nature. This is where they are used to detect humans, not to speak of smaller living beings. One common approach is to detect eddy currents in a living body, which are induced in the body through a.c. mains wiring. However, such circuits become altogether [...]
Read Full Post | Make a Comment ( None so far )
