WEB-O-PEDIA

DAY 2 9:38 AM 6/27/2008 > yesterday the following were purchased -Capacitor box , all the reqd pf s , it was lacking some of the reqd values soo i added the values .. still some are missing line 47kpf etc ,plan to purchase today ... -IC CD 4049 , L -FETs j112 [as a replace ment for the J109 ] ,vendor told it should match the actual one upto 90% -Ribbon wire 6 core , 1 mtr , for the pots , -Mic jack and socket , for testing phase i am using a cheap mic jack 10 Rs and Mic socket :) -Electorlytics 10uf and 4.7uf ,diodes 1N4007 [for the soldering iron ..heh not part of original double d] -A cutter and Stripper , to be used wire and leg cutter -A soap box ...wait its a temporary cabinet to hold the SIX POTS ,and the mic jack ..battery etc what so-ever - also a thin soap box is . easy to drill ... with the mosquito coils ..my new trick The already exiting parts - resistor box , still some missing values like 1 M , 2.2 M , 220K etc soo i have to add today -sol...

Project Log : -------------------------------- Name: My Double D -------------------------------- -------------------------------- The Idea : -------------------------------- I wanted to make a decent distortion pedal for my guitar , at a lesser expense . Also wanted some thing of small foot print. Online i got good reviews for the Double D . The simple design looked great , component count was less and .only 1 chip! CD 4049 ... power packed with six inverters . The URL : http://www.runoffgroove.com/doubled.html Then i checked the sound clips ..online both modes sounded as pretty nice . The kit should not cost more than 180Rs. leaving the cabinet and accessories . ------------------------------------------------------------------------------------------------ DAY 1 12:46 PM 6/26/2008> [Thursday] -today is the first day i just did the shopping[sp road] .. i hope all components are in stock components alone -getting the J-FETs was a pain ..i rep...

DC motors are always preffered over stepper motors. There are many things which you can do with your DC motor when interfaced with a microcontroller. in this tutorial we will learn to interfacing a DC motor with a microcontroller. Usually H-bridge is preffered way of interfacing a DC motor. These days many IC manufacturers have H-bridge motor drivers available in the market like L293D is most used H-Bridge driver IC. H-bridge can also be made with the help of trasistors and MOSFETs etc. ►Working Theory of H-Bridge The name "H-Bridge" is derived from the actual shape of the switching circuit which control the motoion of the motor. It is also known as "Full Bridge". Basically there are four switching elements in the H-Bridge as shown in the figure below. As you can see in the figure above there are four switching elements named as "High side left", "High side right", "Low side right", "Low side left". When these switches are tur...