Author Archive

Prithwiraj Bose

I am an Architect of Distributed Applications of Information Services Industries in TATA Consultancy Services Ltd. I live in Kolkata, India. I love computers, programming, travelling and singing. Photography, spending time with my aquarium, designing a random website, painting, and singing are my favorite pass time. I've recently grown interest in Electronics, IoT and Robotics.

Long Range Powerful FM Transmitter Circuit with PCB Layout – Tested

Written by Prithwiraj Bose on . Posted in Hobby Centre

FM Transmitters are always one of most popular circuits for hobbyists. Transmitting audio without wire is really exciting to make and use. I particularly know this because I am hobbyist. I am not an Electronics Professional. My major was not Electronics. I started my journey with Electronics as a hobbyist who loves to make every hobby circuit available on the web. After gaining much experience on which circuits to make and which projects are fake, I started writing this blog. I personally test each of the circuits, which are posted in my electronics hobby section. I’ve been playing around with this long range high power FM Transmitter circuit for quite a while and finally got a chance to make and test it personally last week.

NE555 based PWM DC Motor Speed Controller Circuit with PCB Layout

Written by Prithwiraj Bose on . Posted in Hobby Centre

In this article I will show you how to create a NE555 Timer IC based PWM DC Motor Speed Controller. I will share the circuit diagram, component list, tips for making the circuit yourself and a fully working Printable PCB Layout. You can fabricate your PCB with this layout and make the circuit easily. This is one of the most common circuits of my Electronics Hobby series.

Review of Cherry Resort, Temi in Sikkim, India

Written by Prithwiraj Bose on . Posted in Reviews of Products, Services and Websites

Temi is a small village of South-East Sikkim. Himalayan Ranges covered with green and thick rain-forest and varied colored flowers and birds makes this place a heaven on Earth. The wonderful Temi Tea garden adds to the beauty. Cherry Resort is located at the heart of Temi Hill, on the north west slide. Due to it’s geographic position, Cherry Resort is one of the best places in Sikkim to see mesmerizing Mount Kanchenjunga. In my review series this one is the Review of Cherry Resort located in Sikkim, India.

AliExpress Review - My Worst Experience

AliExpress Review – My Worst Experience on AliExpress

Written by Prithwiraj Bose on . Posted in Reviews of Products, Services and Websites

I have no choice other than writing this AliExpress Review. I am a frequent online buyer of cheap Electronic Components. And I buy regularly from Ebay and Banggood. I have been listening about AliExpress for a sometime now. And I thought of giving it a try. Suddenly something wrong happened with me and here I am writing this AliExpress Review about my worst experience!

Videos By Veritasium

Written by Prithwiraj Bose on . Posted in Watch Videos, Movie Trailers, TV Shows, Funny Commercials

LM317 High Current DC Regulated Power Supply Circuit

High Current DC Regulated Power Supply Circuit With LM317 – 5 Amp Current with Voltage Control

Written by Prithwiraj Bose on . Posted in Hobby Centre

Lets make a High Current power supply with LM317 Voltage Regulator which can supply upto 5 Amp. LM317 is one of the oldest, most used and wonderful linear voltage regulators. I personally love this IC (yes, it’s not a transistor) a lot, not because it server it purpose well, but because it’s cheap, easy and never disappoints you while making a regulated DC power supply. In this blog we will make a High Current power supply with LM317 Voltage Regulator and a couple of Power Transistors