Saturday, January 8, 2011

32W Hi-Fi Audio Power Amplifier using TDA2050

In this project we develop 32W hi-fi audio power amplifier using TDA2050 integrated circuit. The main objective of this project is to provide common high gain audio amplifier for DIY kind of projects.

In this given PCB pattern, both the power amplifier and PSU are limited to the 53mm x 65mm printed circuit board. This circuit is design to work with 15V – 18V (AC) supply voltage and it is highly recommended to use suitable step down toroidal transformer with this system.
All the PCB patterns and schematic diagrams of this project are available to download in here.

Saturday, January 1, 2011

DIY UHF/VHF TV Antenna

This DIY project happens because of some request of my family members. The ultimate goal of this project is building analog TV antenna to receive UHF and VHF channels with minimum distortion, noise, materials and time.

All the building materials of this antenna are available in general electronic shops and hardware stores.


I got excellent results from this antenna in my home town: Maharagama (Colombo, Sri Lanka) with all the locally available VHF and UHF channels.

Technical drawing of this antenna is available to download in here.