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Sci.Electronics.Basics
Sci.Electronics.Basics is a worldwide Usenet news group that is used to discuss basic electronics questions.
There are 4626 threads in our archives.
You are looking at page 19 of 463.
The threads with the newest articles are listed first.
Basic auto ignition electric Q [32 articles]
Paul Conners - 2009-10-22 16:03:00
Single coil, rotor & distributor cap system, 4 cylinder.
Is the coil housing grounded? I always thought the coil housing was the
return path for the secondary circuit / spark current. I know tha...
Nissan Looking At Roadbed Electrification [23 articles]
Bret Cahill - 2009-10-21 23:36:00
Induction may make sense in parking lots or city streets but the wire
in an 18" diameter slotted pipe under the roadbed is best for the
freeways.
Bret Cahill
...Cost of DSP In Other Consumer Items [24 articles]
Bret Cahill - 2009-10-21 14:01:00
Digital hearing aids seem to remain pretty pricy. Is anything else
using DSP more expensive than a $300 laptop?
Bret Cahill
...The electronic cigarette design [4 articles]
vipcig - 2009-10-20 22:09:00
VIP is a worldwide leading brand of electronic cigarette enjoyed as
tobacco smoking alternative.
The VIP electronic cigarette consist of several components.
The main body of the cigarette is a ...Serial Port Design for Z80 - Questions [15 articles]
Commander Dave - 2009-10-20 05:33:00
Greetings!
I wanted to add a serial port to my 1981 Gorf arcade machine. Since it is
really just a specialized Z80 computer, I was just going to tap the signals
from the Z80 pins and create a s...ua741 [14 articles]
cc - 2009-10-19 09:21:00
I'm aware of uA741 slew rate issues and limited GBW, but I can't even
get above gain of 2x with Vcc of +/- 12v and input sine wave of 5mV
peak at only 100Hz (yup, one hundred Hz). What?
...wall wart and leds [6 articles]
medusa - 2009-10-18 22:33:00
I am trying hookup a 10mm superbright led to a wall wart that is rated
output 9v, 300ma. I used a 470 ohm resistor for this connection
but .the wire feel a little warm to me. When working with wa...Semiconductor markings [2 articles]
Richard - 2009-10-18 17:30:00
I have a transistor marked D401-Y, made by SEC.
I see data sheets marked CSD401, 2SDS401, KSD401, MPD401.
I think it's clear that the device is essentially an NPN Power Transistor.
But why th...simple output filter question [32 articles]
George Herold - 2009-10-18 11:54:00
Here's a question that has been bothering me for a while.
I want to make a simple lowpass output filter. With time constants
from maybe 1 ms
to about max 3 sec.
I like to cascade two of them....Seasonal Circuits [4 articles]
RogerN - 2009-10-17 23:43:00
Just a couple of ideas for maybe simple winter circuits.
A battery charger that would charge lead acid batteries automatically maybe
once every day or so. Or maybe just charge then float. I tho...