Electronics Forum / Basics / February 2007

I have a bank of 6 6V batteries and I'd like to be able to measure the
voltage across each one. Would the best way be to use a diff amp as the
voltage won't be relative to ground?
If so, could someone please suggest a suitable IC that will won't go into

Hi, I am looking to find someone who could design and make up a circuit
for me for a reasonable charge. I already have some of the electronics.
I am not sure if they can be used or whether the project should be
restarted from scratch. The basic spec is below.

I'm trying to design a video output board for my Mega STe computer
which has two different video modes (low/medium resolution colour &
high resolution monochrome) designed for Atari's own colour or
monochrome monitors.

Has anyone any ideas making resistors in the 1 ohm to 20 ohm range from
materials likely to be around the house somewhere?
R

I have two datasheets describing the transistor 2N3906. Consider these
pdf-files:
http://www.datasheetarchive.com/datasheet.php?article=3743092
http://www.datasheetarchive.com/datasheet.php?article=3743093

My name is bruce here.
I come across a new word "tuning" when I browser some technical
documentation.And I googled it but can not find the exactly answers,
so any one can help me ?thank you!

I have a make a research for the school about "the role of transistor
in the industrial production".
I've not many ideas about the topics I should analyze in depth.
Please suggest me two or three ideas.

I want to build this simple circuit to power my Xbox on and off via an IR
remote control
http://xirremote.tripod.com/
Whilst I'm OK with soldering and building the circuit, I've got no idea when

WHAT IS ISLAM?
Can we find an explanation of the great universe? Is there any
convincing interpretation of the secret of existence? We realize that
no family can function properly without a responsible head, that no

I am looking for a way to control the power (the water temperature if
you prefer so) of my shower.
Specifications:
Tension: 220V

I'm making a handheld unit and the enclosure that was dictated to me does
not have a battery compartment door on it...so I have to use internal
rechargables. my. The unit will get used 1hr/day, 5V @120mA, so my initial
thoughts are to use 2 or 3 AA in series.  The product life ...

Hey all;
Still plugging away at getting my pedalboard pop free. I use a transistor to
switch amp functions, as shown below:
                               +15v

Can anyone out there recommend a newbie-friendly illustrated online tutorial
on how to test a power supply and motherboard with a multimeter?
Thanks in advance,
smackedass

I am working on Jitter in Analog to Digital Converters(ADCs). I am
trying to setup an experiment to see the effects of jitter in real
time ADCs. I have an ADC evalutaion board with external clock input
for sampling (i.e Sampling clock).

Anyone have any experience with them?  Are they easy to zap?  Specs and
prices look good enough, what say the masses?  I'm considering the MM560
here:
http://www.extech.com/instrument/products/alpha/MM560_570.html