Hobby Electronics Basics

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question

Let's suppose I buy a receiver that has the following information: - Voltage: 7-12V DC (positive center pin) - Output C...
9 comments posted 16yrs
posted by concorde93
9 comments posted 16yrs posted by concorde93

alluminum block

Hello all, If I need an Al Block to heat up and I need the least possible dimensions but I need to increase its tempera...
11 comments posted 16yrs
posted by elahetale
11 comments posted 16yrs posted by elahetale

QC check list ?

Does any members know where I can find technical check list used in the assessing electronic and electrical components f...
5 comments posted 16yrs
posted by mowhoong
5 comments posted 16yrs posted by mowhoong

PCB Toner transfer?

I have a HP LASER JET 1018 that the toner is running out. I see staples and the regular chains sell replacements for in...
13 comments posted 16yrs
posted by spam
13 comments posted 16yrs posted by spam

Computer totally freezing after a few min

I have a few year old computer (clone, I built with VIA chipset) that has suddenly started to completely freeze. The im...
21 comments posted 16yrs
posted by N
21 comments posted 16yrs posted by N

cell phone intererence / feedback

Hi There, Can someone explain to me why whenever my GSM cell phone rings, I hear that humming/pulsing sound on any audi...
6 comments posted 16yrs
posted by a7b98208
6 comments posted 16yrs posted by a7b98208

Transformer for arc welding

I've been thinking of buying one of those cheap (~$100) 120 VAC "stick" arc welders for a particular project: Welding a...
11 comments posted 16yrs
posted by N0Spam
11 comments posted 16yrs posted by N0Spam

Simple SD Interface

Hi folks. Hopefully my post won't get lost in all the spam I noticed in this area! Anyhow, I want to do something fairl...
1 comments posted 16yrs
posted by fyberoptic
1 comments posted 16yrs posted by fyberoptic

Help with Simple circuit and relay

Can someone look this circuit over for me and let me know if it looks ok, and if any changes are needed? The design is...
10 comments posted 16yrs
posted by ultralightbackpacker
10 comments posted 16yrs posted by ultralightbackpacker

Question on AMPS

Hi all, I have a simple question I am sure for you guys, but I am merely an idiot when it comes to these things and mos...
14 comments posted 16yrs
posted by ultralightbackpacker
14 comments posted 16yrs posted by ultralightbackpacker

WHAT IS A TUNED AMPLIFIER?

I NEED A HELP ON A TUNED AMPLIFIER JUST ALITTLE LECTURE NOTES ON TUNED AMPLIFIER WITH BJT AND FET ALSO AND THIER GAIN AN...
5 comments posted 16yrs
posted by jkb997
5 comments posted 16yrs posted by jkb997

Long-lasting lcd display

A display unit I made about 9 months ago using an lcd alphanumeric display has gradually deteriorated to the point wher...
1 comments posted 16yrs
posted by news
1 comments posted 16yrs posted by news