Latest threads in Hobby Electronics Basics

electron in the metal has total energy that is higher than semicon

I am reading one chaper called metal semiconductor contacts. Somewhere it gives a chart about energe level for metal an...

0 20yrs

patrick.zou

0 20yrs patrick.zou

Electrically short antenna

I read in a book the following: An Electrically short antenna means that is shorter than one half wavelength which also...

5 20yrs

papageorgiou40

5 20yrs papageorgiou40

7segment display multiplexing

Hi all, I want to multiplex two seven segment display with a single control line!! Here is a schematic http://www.mikro...

2 20yrs

nospam4u_jack

2 20yrs nospam4u_jack

Digital Delta-Sigma DAC

Hi all, I want to design a digital delta-sigma DAC. It includes a pulse density modulated module and RC low-pass filter...

9 20yrs

zhushenli

9 20yrs zhushenli

Explain Circuit Please

I wanted to thank everyone for their input on my previous post. I ended up implementing the following circuit to light...

7 20yrs

nospam

7 20yrs nospam

Best source for magnesium?

Ok. So now I want to start looking for sources of magnesium to make a homemade wet cell. Preferably the magnesium would...

17 20yrs

uce

17 20yrs uce

current sensing

Looking for a little help with a simple voltage regulator I'm building for an antique vehicle with a DC generator. The...

33 20yrs

kellrobinson

33 20yrs kellrobinson

American HP camera exploded when used in europe

Hi! I recently bought an HP R707 camera in the united states. I brought it with me to Europe over christmas. When I plu...

11 20yrs

an.rasmussen

11 20yrs an.rasmussen

need help with build a LED backlit!

hi everyone, I have a electoric handhold sudoku game system, is there any easy way to build at backlit for the LED scree...

4 20yrs

hsinhsin

4 20yrs hsinhsin

Digital clock need!

Hello all. I am new to the world of digital electronics, I would like to build a digital clock HH:MM:SS with 16F84PIC o...

11 20yrs

hiroc13

11 20yrs hiroc13

mail me how a semiductor can be doped

i want to know how asemiconductir can be doped

3 20yrs

mhjn_nmrt

3 20yrs mhjn_nmrt

Fast pulse amplifiers for scintillation output from PMT

Dear all, I am doing developing a fast time-resolution scintillation detector for a high density focused microbeam (aro...

7 20yrs

Xufei.Wang

7 20yrs Xufei.Wang

Downloading

This might be a trifle OT but I can't think of anywhere else to try and get an answer. My problem is I am unable to dow...

30 20yrs

barneyxyzNOSPAM

30 20yrs barneyxyzNOSPAM

FM Stereo (the truth?)

Can anyone verify that stuff that phil stated? For those that haven't seen it, he claims that rapidly switching the bas...

8 20yrs

spam

8 20yrs spam

Idea for a simple electronics project

Hi peaple, I have to do a simple electronic project for Elec. Eng. Lab. course in my college. But I have not any idea w...

14 20yrs

irenalt

14 20yrs irenalt

Hobby Electronics Basics

Worth reading in Hobby Electronics Basics