Thailand Trips.

Why the travel story was published over here. Travel is something that many people prefer.This is the place for me to relax. I like to travel and photography. because living in Thailand. So I would like to present the my travel trips story, mostly in Thailand. I would recommend the interesting places be following posts.

PT03 DIY hifi pre amplifier

09 Aug. 2011, by Thanaporn.

PT03 is a Preamplifier that was designed to be successor of PT01 vacuum tube preamplifier. I intend to design it with mounted most electronic devices on the PCB except the transformer. So electronic components potentiometer and RCA jacks will be installed on the same PCB. PT03 is a transistor-based preamplifier.The amplifier schematic can be divided into 3 stages.