Hobby Electronics Basics

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Chip with simple program for Toy

Dear Reader, I'm looking for information (quotation for production quantity's) for a little chip in a toy. The only thi...
12 comments posted 22yrs
posted by berrie
12 comments posted 22yrs posted by berrie

Question about charging voltage

I would like to charge my portable DVD player using a portable solar charger rated at 20 watts with 16.5 volts (23 volt...
8 comments posted 22yrs
posted by jake59
8 comments posted 22yrs posted by jake59

need help with low voltage led circuit

I need to build a board with painted animals( got it) with led eyes that light up at night. I've tried to wire it up, b...
4 comments posted 22yrs
posted by tgriff346
4 comments posted 22yrs posted by tgriff346

Blue LEDs? when did that happen?

I ran across an old electronics book, the beginning chapters of which deal with light emitting diodes. it described the...
18 comments posted 22yrs
posted by guyvf
18 comments posted 22yrs posted by guyvf

Printing problem

X-No-Archive: yes For a very long time I have been using a DOS pcb program which used to work great with my hp Deskjet...
6 comments posted 22yrs
posted by iam
6 comments posted 22yrs posted by iam

Blow sensor?

Any suggestions for a sensitive thermistor or otherwise to act as a blow sensor, dont really need a calibrated or accur...
4 comments posted 22yrs
posted by nws
4 comments posted 22yrs posted by nws

Twinkly lights project

Chistmas doesn't seem too far away and time for me to dust off my trusty soldering iron and knock together some christm...
3 comments posted 22yrs
posted by grahame9
3 comments posted 22yrs posted by grahame9

Detecting short wires ou open wires on RS422/485

Hi, I want to know how can I detect if a pair of wires is shorted or open in a RS422/485 environment. The MAX3097 and M...
0 comments posted 22yrs
posted by louis_reginaldjean
0 comments posted 22yrs posted by louis_reginaldjean

Learning FPGA

Hello, Anny one knows where to find good tutorials to start learning FPGA (Article, web site, free simulation software ....
3 comments posted 22yrs
posted by bcbmasm
3 comments posted 22yrs posted by bcbmasm

Problem about characteristic impedance

how to measure the characteristic impedance of a coax? I'm starting to study the rf circuit design.
5 comments posted 22yrs
posted by xydarcher
5 comments posted 22yrs posted by xydarcher

Digital Clock Circuit Modification Question

Hello all. I am fairly new to the world of digital electronics, and to get me started, I am building a digital clock ou...
5 comments posted 22yrs
posted by random
5 comments posted 22yrs posted by random

12 Volts 3 Amps DC vs 12 Volts 6 Amps DC

I am working on a project. And I have two elements which take power from two different AC to DC power converters. In th...
1 comments posted 22yrs
posted by fatass
1 comments posted 22yrs posted by fatass

Dielectric Constant Standards of Materials?

Hi I have searched the web and found many lists of dielectric constant lists. However, non of them make ref. to where t...
4 comments posted 22yrs
posted by nospam-mail
4 comments posted 22yrs posted by nospam-mail

Finding the Capacitance from Lissajour plot info?

If I have the Phase then say 40deg and the magnitude say 10 then how can I convert that into capasitance. I have the fo...
8 comments posted 22yrs
posted by nospam-mail
8 comments posted 22yrs posted by nospam-mail

Looking for a software to simulate PLDs

Hi, I a software to simulate PLDs, someone know if possible?? (I want someone with graphic enviroment like Workbench.)
0 comments posted 22yrs
posted by Udeis
0 comments posted 22yrs posted by Udeis