forum.allaboutcircuits.com

http://forum.allaboutcircuits.com/

any question about electronic ? just join that forum

electro-tech-online.com

http://www.electro-tech-online.com/

electronics-lab.com

http://www.electronics-lab.com/

edaboard.com

http://www.edaboard.com/
visit this forum

free-electronic-circuits.com

Free Electronic Circuits, a site dedicated to electronic hobbyists. There are many pages of quality information from actual electronics projects and electronics circuits that you can build, to electronic symbols and a glossary of technical terms. We also provide valuable information and links to design and simulation software.

learningelectronics.net

http://www.learningelectronics.net/

This site provides a series of online textbooks covering electricity and electronics. The information provided is great for both students and hobbyists who are looking to expand their knowledge in this field.

Light emited in December

Hooii... Fun in december, how do you do ? Create something shine. In this town, electricity become bad. cause rain, dark in some spot, perhaps the transformer need adjust in rainy day season. First I bought A litte Emergency Light made from battery and several LED white. cool i think.. i love LED revolution product. Many kind of them have sophicated design, very cool i think. Just use LED light now. Next step in End of year we celebrate with many Light in night. Create some LED decoraton, you can create "OPEN sign" from red LED with Blue LED as Border. come on, make yourself one then give me your best shot Picture of your HomeStore or WareHouse. i wait for your best electronic design in your blog. I will give you opinion. please leave your blog link in here as comment. Best regards from tropical nation in here.
thanks you verymuch.
Bobo.

sub woofer TL 072

Little Story

Usually I works in a full day only 8 hours, but here @ my office, it's almost 16 hours ..
hmm.. so tired,..almost no time for research... :p
Scheme


Prototype
not yet. I plan to fix my broken Speaker computer.
Photo:

Long time no research

Hello reader, I ask Apologize that i rarely post something here, i get e-mail from Histats, that no new visitor arround here, it means that my page is not good. Then the goal i must make this area not too quietly. Start to make some new stuff. Look back over my shoulder, there are no post about electronic, where am I ? First, i'm too busy with my adminitration job at office, Second honesty i'm lazy to fill story here. sorry. What can I do now?.. hmm.. look arround many broken electronic toys from my nephew. They can re-use for something usefull or back alive again. (but many fraction, crack, and damage plastic body,..) he loves mini train. with round track. soo many hotweel cars collection (several gone). any idea what gift for him ?

Camera Digital

Do u have camera digital? if yes then lets make some good photo from this stuff. Electronicaly this camera don't have film inside, only semiconduktor called CCD. Charged Couple DIsplay ? i'm not sure what inside. just use it for fun. of course i put many pic that i produce from that camera digital. see at my face book foto collection :-)

090909

Just wanna write cool day, this is 2009 September 09th, u can write 090909 nice number.
today i have wierd feeling, i had many accident today, splash ink on my hand. Engine trouble on city bus. I friend make mistake and got angry from our bos. well just like that, long time no write here, what am i doing? still dreaming about digital clock. I wish i can make one unit and i put to my office. I seen on tv many digital clock near bedroom. minibox with light of sevensegmen display.

Independent day

Our Nation celebreate Independent Day at 17 August, What a fenomena, about late of '90 There are something new idea to put bulb light 220 Volt sequentialy at Line. Vertical line with colorfull bulblight, put at your fences. I did take pic that day. You can imagine the power comsumtion about 5 Watt multiply 20 pcs equal 100 Watt. bright enough to glow your home. I plan to make it flickering with simply relay and IC 555 Timer. Until now, the dream does not come true :-(. Anyone can provide me the scheme circuit of that?

Auto Light

Here my own story, i bought auto light controller, Simple work, "off" at day, "on" at night. You must set switch turn on so that device will work 24 hours. Just plug and add to your socket of ordinary light bulb. Now my home will goes on, even i come home latelty cause busy hour and work overtime.

Watch Television on internet

U can see Televisi over internet. Try this one.


http://www.tvchannelsfree.com/watch/4693/ANTV---Indonesia.html

Kingsolder circuit

Berkunjung ke kingsolder ada berbagai macam skema elektro. dulu waktu remaja hoby aku bikin barang elektronik, mulai radio, amplifier, lampu hias, sampai peralatan digital nah berkunjung ke situs ini mengingatkan masa laluku yang cukup indah :-)

www.kingsolder.com

Mosquito Repellant

I find Mosquito Repellant circuit from Graham Maynard.
Consisting of a phase locked loop (CMOS 4047) wired as a 22KHz oscillator,
The output is further amplified by a pair of complimentary output transistors and drives 3.25 inch Piezo.

radio internet

afternoon, i work while my radio internet running. Listen to the different city, use air transmission is possible cause limitation coverage area. Now using shoutcast player, winamp support shoutchast streaming, here the link u can try.
press ctrl L to show address box, type one of following address. okey..press play.
listen...

KISS FM Radio Online Medan Indonesia.
http://live.kissfm-medan.com:8080/

(PasFM Surabaya 104.3 FM Business Radio)
http://radio.mitra.net.id:8102

(RADIO BISNIS JAKARTA PAS FM 92.4)
http://202.146.225.106:8000
Radio Rodja 756am (Radio Rodja 756am)
http://rodja.sytes.net:8000

Putra FM 90.7 - Suara Kampus Terkini / The Latest Beat On The Campus - Putra FM, Ting. 2, Jab. Komunikasi, FBMK, UPM, 43400 UPM Serdang, Selangor.
03-89468801 / 03-89468806 (faks)
http://www.putrafm.upm.edu.my:8080

amplifier scheme

power-amplifier.blogspot.com/

just visit this blog

Elliot Sound Project

http://sound.westhost.com/
Rod Elliot Sound Project, many scheme here, go visit his page.
i copy this link to my blog for personal use only. i will re-design it to fit in my tinybox. the art of electronic is drawing the PCB :-).
so Do It Yourself, buy the parts, heat with ironsolder, and enjoy electronic hobby...

also he has the Notice :

Copyright Notice. This article, including but not limited to all text and diagrams, is the intellectual property of Rod Elliott and National Semiconductor, and is Copyright © 2001. Reproduction or re-publication by any means whatsoever, whether electronic, mechanical or electro-mechanical, is strictly prohibited under International Copyright laws. The author (Rod Elliott) grants the reader the right to use this information for personal use only, and further allows that one (1) copy may be made for reference while constructing the project. Commercial use is prohibited without express written authorisation from Rod Elliott.

4 LED VU meter LM324

Get Inspire from circuit-electronic.blogspot.com by Tom.
thanks provide us scheme electronic circuits. I want make cheaper, small and humble Audio LED VU Meter. I think that scheme is simple.
I bought IC LM324 only 1500rp (if 1USD=10.000rp so it's 0,15 USD ?)

tone control

i search scheme, and i found tone control. nice, i will build it.
http://circuit-electronic.blogspot.com

libur 3 hari

Bener libur tiga hari? sabtu minggu senin !!! ada yang ngga libur, justru malah masuk kerja, seperti jualan di mall, ato pelibut berita. juga dokter jaga. klo staf administrasi bisa jalan jalan neh, tapi ya dibuat tidur aja, capek.. mau cari tambahan penghasilan juga ngga mood, jadi ga ada duit lebih untuk jalan jalan keluar. jadi nikmati aja di rumah. nonton film dari rental dvd sampe puas, lalu masak-msak dan masak. mie rebus pastinya he.he..

4 Watt audio Amp TIP41

here another mini amp

repair sanyo 4505 miniamp

I got mini amp from my bro, hmm it is very old stuff. i must re-build again. poor the PCB , cause pre amp part is cut off. hmm.. nevermind, it is become more small. Fit in my box :-) so i must search scheme again to figure the partlist. here the scheme. i got from www.electronica.ro
Thanks.

partlist CMOS 40xxseries

here code and the name of that IC CMOS for digital eletronic project. Library picture
ref from CADsoft Eagle layout schematic and pcb design, there are free version for individual use. thanks for the lib...

http://cadsoftusa.com/download.htm

micro project list

here i found many about PIC and ATMEL microcontroller project. Cool site.
Lets hunt microcontroller schematic ..!!


http://my-elektronika.blogspot.com

budget plan

Do my Hobby, need some money, yes, i work at local office. goodnews, i got montly salary, but i have limited budget to build my hobby, mostly 10 USD (or 100rb 1 USD=10rb) not more than that. so can you give me information about the cheapest sparepart ? from DSA page i found the price of PIC 16f84 is 35rb and AT8051 15rb, hmm... i don't want mailed sparepart. cause i only one bought one, homebrew, i do it myself. I prefer go to local store here. Surabaya city. you can see the price at Delta electronic shop.

Var Pattern Matrix LED8x8

Visit www.Dharmanitech.com lately i found and interest project. Microproccesor, before do that i must understand how the memory work dan microcontroller programming. there are many project about matrix LED, Display Variable Pattern via 8x8 LED Matrix. Controlled by microchip PIC, ATMEL, etc.
my plan is creating an used EEPROM to display 8x8 LED, use multiplexer counter to represent 8 coloums. bob blick did that. i want make it too.

VGA to TV

I have and old PC, Pentium Zero.. hihihi.. i usualy called intel 80486 like that. run on 100Mhz compare with my laptop core is 1GHZ !!! wow far away!

My VGA monitor are blown out. i need cable converter between my PC and Television. Where i can find Paulo sergio VGA2TV Driver ? googling of course. Here Mainteain by Tomy Engdahl's site. the cheap configure are grayscale vga2tv.
becarefull it's will blow your vgacard if wrong soldering.
i did . :-p one my old vga isa card .

http://www.tkk.fi/Misc/Electronics/circuits/vga2tv/psergio_circuit.html

Volume Control 4066

Replace than old mono Variable Resistor with digital one. yes i wish i can create an digital Volume COntrol. i bought IC 4066 it's Quad Switch. use R2R Ladder to make some Bridge. For example the level is 0000 binary (all switch off) the output are 0% when all switch on (1111 binary) then the output 100%. We need some Count Up and Count DOwn IC to produce 0000..1111 binary counter. Use 40xx family IC, can use in wide voltage 3,6,12V. the PCB must not over 3x3cm (two IC) with two button, 4 LED binarycode id.

Can you figure out? What about that scheme? come on quick design it, create it and get the photo. put on your web site . then notice me on comment page :-)
Scheme
here the scheme from trensains.com

Shining Star LED

Here I dedicated to my fan. How make a shining star. This scheme suitable for electro beginner, when i teen-age, a create some running, chasing 10 LED use IC 4017. it's work. and i become actdictated. next project are bicycle LED, Horse LED ( a horse? yes, feet, head, tail made from LED, wired together, lovely put on my desk).

The design of star LED is each feet (5 or 6) can light sequentially. need more than one IC 4017, or you just link in series or 5 LED. need TR to pull more power (20mA x 5 LED) better if you use Blue LED, but it's more expensive than green LED. (double price)
not yet to take pic, how about your design?

Januari 2009

Still on januari 2009...

MicroController

What is MicroController, that is a small circuit that contains Processor, EEPROM, and Connection between That device with computer. It's much fun if you can controlled it act with downloaded code into it. so this section i will talk about microcontroller, There are many microcontroller, ATMEL 89c51, PIC 16F84, which one ? i think ATMEL cause the price more cheap than PIC, how about u ?

Dharmani Site

Here Dharmani Page, He is an Electronic Engineer. come on see his project.

Alan Nishioka Page

when i surf on internet, i found the office picture shot. Unique.
that is Mr. Alan Nishioka desk. Many Books, computer, also toys.
his Page has many photos, his research and travel, a lot of digital photo album outthere. special thanks to him about his generic eeprom digital audio player portable scheme.

i re-draw it for more easy read. Tell to me if any correction re-vision, re-mod, and re-build.

source :Nishioka Page

Electronic Digital

Digital Electronic is start knowledge to get more complexity about how this computer work. begin from lesson How to convert DEC, HEX, BIN, numeric. Lesson two must understand gates :-) OR, AND, NAND, NOR, also how to make circuit. Use several digital IC 74xx TTL and 40xx CMOS, Karnough Map, Add, Sub, multiply, How about Flip Flop, Register, Counter running. Talk about PROM and EPROM, RAM, minimum system consist of Processor and Memory, Know how DAC ADC, I/O, finally you make your own MicroController.
i think i wll start making ring counter project, easy to build use IC 4017 :-)

EPROM

EPROM = Eraseable Program ReadOnly Memory.
it is IC that can keep data or program instructions.
I use it for first step movement to undestanding about mikroproccessor.
according to DavisSetyaAtmadja from here scheme Paralel EPROM programmer complete Picture i will make that, i hope it's working..

PACMAN STORY, MOVIE?

imagine, try to live in different age era?.. ice age?.. future space? how to enter that? just try write some story, perhaps it can be movie. can anyone re-produce my story? yes. i wish i can get charity money from this story. :-) bellow is the story one, read it.

my story about Mr. Pacman, yes..you know that is ghosteater or monstereater at old pc. shapebody like ball, bumping, jumping, rolling, sliding, bouncing, spinning, running. plus two hand, two feets, he is yellow, sister are pink, and the cool bro are blue. you can produce toys like this, pop up the handfeet like turtle. dislike? just trow it and crack it become several pieces. yes ask your parrent to buy it again. :-) if exist. hmm whatever, he some kind like carnivora, wide mouth, just hunt and eat. scary is'nt? well i'm not trying tell scary story. only invisible green pacman between the leafplant.

the story began from pacman child era, what? child era? like human-life i guest. story began about his-life, just simple little home, with mom and dad brother and sis. the message is how to to learn in range era chlid to be a man (adult pac-man i means) i tell in era 90'an when he has own pc, (remain me on young era. happy happy forever.) you can sell the laptop or personal computer staton system from this point.
and add google search or any social electronic contents. :-p advertise isn it?
somehow, he become eater all of things, all from rice, vegeta, fruit, chicken,all he loves. also milk from cow :-), go ahead hug and kisses the cow, she is your second mother :-D. little pacman is like monster !!!, more evil than dog or tiger, hmm scary enough. but he try want be good man, not evil naughty bitchy man like other pacman.

in other village have dissaster (its old classic fiction story, u can guest enemy has come) in the realworld, someone eat someone, in pac world, big one eat little/weak things, cruel. you can imagine, pacman has wide mouth, walk sliding, like no gravity. bumping arround 3D X,Y,Z direction, like bubblesoap in the air (he life in unkouwn planet..perhaps poolball :D ) they plan comedown to the ballcity,.. with his troppers jumping like kangoroo, chaos.! darkscreen for a while...

other side story, Pacman got train with his father ( almost good family must do that..) try walk fast like father. soon we battle with that enemies. before they attack our city. try stronger than father, until, you can beat your fatherself :-) but in friendly compettion. the father become old,. yes new generation rise up. you pacman.! give honor, give brightcolor. pacjunior become pacman..!! have ablitiy to : able run faster, chase small creatures...eat it.? have power to blast something (cool like video games) example like fireball, or bowlingball. have secret powerfull weapon, after eat delicious and nutrifous fruit at jungle. (in try and error, he also got poisonus fruit that have sick several days) ask your father first this is poisonus fruit or not.learing by doing.

the funny thing, is pacman try to eat another fruit color beside yellow, than? he become sick. well if sick where we go? meet the Mr. whity pacmaball doctor.!! with grey nurses (don't affraid its not monster she good people) and brighties creamy sexy nursepacwowman (wow..) so the first thep, get in bath, wash the color, the pacman healty and back at his yellow color this is good for learn cymk color. beauty magenta sis has eat cyanida ups i means cyan fruit. and she become blue. (cyan+mag=blue) yellow+mag=red, very hot temperature, pacman eat cyan one? cyan+yellow=green, pacman like drunken master.. do not eat little cyan marbles again. grey pacman eat all of them, then? he become dark. black and death. poor grey pacman. becarefull of what your eat. after eat brush your teeth and tongue. the scene is most lovely fun with tropical rainforrest jungle, warmth, damp, and sweat. not only on mazebox, i dont like prisoned rat, be wild rat, can visit outta the the nation island. afrika, europa, india, asia, amerika. hijjack the overseas ship. how about you? yes visit our beach, bali island, java island, sumatra island, kalimantan, sulawesi, maluku, irian, we have lot of island to visit. Come to Indonesia archipelago. eat the spicies food, extreme food, wierd food, any food can found here, eat like monster. try also visit bromo mountain, kelud mountain at east java. the most complete destination. walk around, feel the atmosphere, deep breath, burned your skin.ups.. back to story..

in bright sunny day, starting the combat, the war were began, wake up young pacman
the monster come to yours village, time to defence. you know they evil thing all weak old pacman, killed, cause not enough power to fight anymore. you the hot one. try to get yourfreedom, all younger pacman get battle (like multiplayers pacman?) well the invasion began, try to defence your land. and yes, you win !!. hurray !!!! now collect more power, to kickback his kingdom moster that always creates new ones.
the bad news, that weak monsters runaway and get charges at his nesthome. and they
come back with full power, never extinct so the decicion is we must destroy the nest.
slay them up to the nest. go ahead, attack..!!!move on !! at the high mountain !

pacman also can weak, to reveal his power he must eat the fruit, (not eat the monster !!) vegeta, get vitamis from there, (it teach child will want eat vegeta and fruit.)
just put in boliled hot water and eat it. i wish pacman become orange :-D
his friends help with bring the fruit from farm,.. yes! green pacman is farmer..! we need him. drink renjuvation recipe: boil water with burning wood branch, add sugar tree, ginger root,coconut. the pac kid also like various battle, various weapon, level and stages. able to climb up.! as usually ending stories, pacman and his friends has nest destroy, yes together is more fun. win the final battle, against the several bigs monsters. destroy the nest. huray again !!! celebrate the double win.!!! after war, life is more peacefull. story end at peace seasion.

i hope this can be cinematic electronic or anime movie. fit in 60minutes video cd. or divX cd. may be i will create in flash animated shockmovie, can u in 3D blender? sorry unable to do that. hello waltdisney ? Pixar ? paramount picture? 20centuryfox? please make my dream come true. that all or my own designed storyboard about pacman, how about u ?

www.radiolocman.com

Hey i found some cool directory, there are many scheme and photo about electronic project, i suggest come to there, have fun in 2009

http://www.radiolocman.com/