In this post I have explained the complete datasheet of the transistor 2N3906. It is the complementary to the transistor 2N3904. Here is the complete datasheet for the 2N3906 PNP transistor. Pinout Configuration The transistor 2N3906 has 3 pinouts named as emitter, base and collector. These pinouts are arranged as shown in the following figure: […]
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2N3904 Datasheet [40V, 200 mA NPN Transistor]
In this post I have explained the main datasheet and pinout details of the NPN transistor 2N3904 Introduction The transistor 2N3904 comes under the category of NPN small signal, low power, general purpose transistor, mainly applicable for switching and for signal amplification. It’s dynamic range may include a current handling capability of more than 100mA […]
200, 600 LED String Circuit on Mains 220V
In this post I have explained the construction of a 200 to 600 LED circuit project, using series parallel LEDs for creating an alphabetical display sign board. The idea was requested by Mr. Mubarak Idris. Circuit Objectives and Requirements I need a blinking LED light that show”WELCOME TO” blink and then “COLLEGE OF ENGINEERING” base […]
BT169 SCR Datasheet [200 V, 0.5 A SCR]
The BT169 is a thyristor or SCR (Silicon Controlled Rectifier) that is commonly used for switching applications in low-power electronic circuits. It can be used for small signal, low current applications. Its size is very small just like a BJT. Here are the full technical specifications of the BT169: Electrical Specifications Pinout: The BT169 SCR […]
Free 200 Volts Just Above your Head
Lightning in skies is the phenomenon which proves beyond doubt that free electrical energy could be there in abundant quantities all around us. Warning: The concept I have explained in this article has not been verified by the author. Readers are advised to read and proceed at their own discretion. Power of Thunder Lightening A […]
How to Make a Simple 200 VA, Homemade Power Inverter Circuit – Square Wave Concept
An efficiency of around 85 % and a power output of more than 200 watts is what you will get from the present design of a power inverter (home built). Complete circuit schematic and building procedure explained herein. Introduction You might have come across many articles regarding power inverters, however you might be still confused […]





