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Automatic Voltage Stabilizer with PIC16F873A Download links for the article:  Google docs (go to the link, click File in the PDF window, then click Download): https://docs.google.com/file/d/0B4SoPFPRNziHb3VrX3JhWko3d1E/edit Scribd link: http://www.scribd.com/doc/207498741/Automatic-Voltage-Stabilizer-with-PIC16F873A 4shared download link: http://www.4shared.com/office/ktU0k9dqba/Voltage_Stabilizer.html You can download all the files related to the voltage stabilizer: Google docs (go to the link, click File in the PDF window, then click Download): Code: https://drive.google.com/file/d/0B4SoPFPRNziHbWtkVUc1VUM1REU/edit?usp=sharing HEX: https://drive.google.com/file/d/0B4SoPFPRNziHSVJ1a0t2STNDd3M/edit?usp=sharing PCB: https://drive.google.com/file/d/0B4SoPFPRNziHdkE0SzI4SDQ5V3M/edit?usp=sharing PCB images: https://drive.google.com/file/d/0B4SoPFPRNziHNEtSQlVtX2x4VWc/edit?usp=sharing https://drive.google.com/file/d/0B4SoPFPRNziHQXl2eWtydmh3WkU/edit?usp=sharing https://drive.google.c...

This is an Amplifier circuit diagram We can use this circuit to amplify AM,FM,SW radio waves.Here I have used MPF 102 transistor circuit but If you are unable to find it you can use 2N4406.When you build this circuit diagram build this circuit in a small PCB  you can get  clear radio signals.    Note: # Build this circuit on a PCB  # Supply only 9V

I previously showed you my PIC32 proto board I made on verroboard ( http://tahmidmc.blogspot.com/2014/02/pic32-development-proto-board-on.html ). To make the proto board “more of a product” and easy to reproduce, I was working to make the proto board on a PCB. I used ExpressSCH to draw the schematic, and used ExpressPCB to design the PCB. Once designed, Professor Bruce Land got the PCB made from ExpressPCB themselves. The PCB is just to be a basic board with the PIC32MX250F128B placed on it. The power supply connections are provided as are external oscillator connections (if needed). Additionally, there is a nice convenient power supply input connector (standard 2.5mm jack/plug). All the IO pins along with power (Vin and +3.3V) and ground are placed on a SIL connector at the edge of the board so that the board can be conveniently placed on a breadboard for experimenting and prototyping (see pictures below). It's a nice little 2-layer PCB measuring only 3.1 inches by 1.8 inches. I ...

My PIC32 protoboard in action - Measuring the speed of the internal ADC and displaying it on the 7 Segment Display board It’s been a while since I last posted. My second semester at Cornell has begun and it has been busy. My first semester ended mid December 2013. So I went back home to Dhaka, Bangladesh for winter break. Unfortunately, due to the ongoing political crisis in Bangladesh at the time, I could not spend too much time outside home. Thus I ended up spending a lot of time on electronics. There were two aspects to this over my winter break. One, I spent a lot of time with the PIC32, writing some code, doing tests with the peripherals and making a “proto board”. That, I must admit, was a lot of fun. It was a continuation of my independent study (see: http://tahmidmc.blogspot.com/2013/09/200000-views-ithaca-arm-and-dmips.html and http://www.tahmidmc.blogspot.com/2014/01/a-comparative-study-between-at91sam3x8e.html ). The second part was me developing an AC-AC voltage stabiliz...