Hobby Electronics Basics

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Cheap pressure sensor

I was wondering if there was a cheap way to messure pressure. Perhaps up to 50 psi. I have this cheap digital tire pres...
6 comments posted 21yrs
posted by danritter
6 comments posted 21yrs posted by danritter

Inexpensive wide-range variable capacitor?

I need to be able to vary the capacitance of tuning capacitor for a [huge] ferrite antenna from 3 pF to 0.3 uF -- a ran...
3 comments posted 21yrs
posted by cprstn54zz
3 comments posted 21yrs posted by cprstn54zz

Resistor Colour Codes

Hi, I have a resistor that is showing up as 56.0 Ohms on a multimeter but the colour code seems to say 560 Ohms. Green...
9 comments posted 21yrs
posted by richard_harris_2
9 comments posted 21yrs posted by richard_harris_2

help understanding the monster I created :-)

I've been working on a silly gadget using the cut & paste bits of other circuits technique combined with a large does o...
3 comments posted 21yrs
posted by Tom.Horsley
3 comments posted 21yrs posted by Tom.Horsley

not understand anemometer

http://www.otherpower.com/.html The internal circuitry of our brushless DC motor consists of 12 coils, and a permanent...
8 comments posted 21yrs
posted by noemail
8 comments posted 21yrs posted by noemail

Diac's Again

I have several general questions on Diac's. It seems that some electronic places dont sell Diac's . I went to one place...
3 comments posted 21yrs
posted by Trudeau
3 comments posted 21yrs posted by Trudeau

X1 Charge Pro for Ni_MH Defective?

Many months ago I bought an X1 (Xl?) battery charger with four Ni-MH batteries. I put the batteries in (correctly), and...
0 comments posted 21yrs
posted by wolf_tracks
0 comments posted 21yrs posted by wolf_tracks

Why P910i response random code to PC terminal?

Dear All, I use PC to connect my P910i cell phone by SPP(BTW driver), but it responses random code to PC terminal? Why?...
0 comments posted 21yrs
posted by bokiteam
0 comments posted 21yrs posted by bokiteam

Figuring out LED specs

I have a bunch of loose LEDs. Some of them are completely clear. Is there anyway that I can figure out the specs for th...
22 comments posted 21yrs
posted by Mike Chambers
22 comments posted 21yrs posted by Mike Chambers

Simple Battery Monitor Circuit Required

I'm trying to think up a very simple circuit which will monitor battery level. Requirements are Vbatt > Threshold --- L...
9 comments posted 21yrs
posted by nigel
9 comments posted 21yrs posted by nigel

Electronics employers in Toronto?

Hello, I'm a fairly recent graduate of EE, and I also have an electronics tech. diploma under my belt. I'm *desperate*...
9 comments posted 21yrs
posted by minus3db
9 comments posted 21yrs posted by minus3db

mips and concurrency/simultaneous running tasks

Hi I was wondering if anyone can help me as im new to the mips architecture. I'm told mips is able to run (or run more...
1 comments posted 21yrs
posted by scott.keogh
1 comments posted 21yrs posted by scott.keogh

Diac / Diode Confusion ?

On the following link it says in part the following.... Most diacs are used for pulse generation, probably in the order...
4 comments posted 21yrs
posted by Trudeau
4 comments posted 21yrs posted by Trudeau

Books On Building Studio Monitor Speakers?

What's a good book for designing your own studio monitor speakers? I was wondering if you knew of any diy projects to b...
1 comments posted 21yrs
posted by FREEPEOPLE
1 comments posted 21yrs posted by FREEPEOPLE

How to use Opto sensor ?

hello everyone I m the new member of ur group.Basically, was looking for some information on sensors, like optointerrup...
1 comments posted 21yrs
posted by prashantpma
1 comments posted 21yrs posted by prashantpma