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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 4623 threads in our archives.
You are looking at page 13 of 463.
The threads with the newest articles are listed first.
Sallen and Key's classic 1955 paper [33 articles]
Wayne - 2009-12-02 21:01:00
I am looking for the seminal paper by Sallen and Key entitled, "A
Practical Method of Designing RC Active Filters." I am currently
compiling a list of resources for an application report I am writi...
Christmas tree light question [5 articles]
John Carter - 2009-12-01 06:21:00
Yes, it's that time of the year when men swear at tree lights, just
as I am doing now %&&*%*^$&^$%&^$%*&(^(*&%!!!
We have a pre-lighted tree with the lights that stay lit when a bulb
goes out o...LED direct replacement for flashlight bulbs? [11 articles]
terryS - 2009-11-30 16:22:00
Kinda outta date here. Most of our stuff is old, but it works; or if
it doesn't we fix it asap.
So is it possible now to buy direct LED replacement for the
traditional two and three cell flashlight...Agilent DMMs? [9 articles]
Sparky - 2009-11-30 06:54:00
I've owned & used Fluke DMMs and Tektronix scopes. I don't know much about
the Agilent U1242A DMM.
What's the history of these meters? Quality? Usability?
Anyone have any experiences to shar...Counter/ Timer [3 articles]
DaveK - 2009-11-28 16:20:00
I=92m a baseball coach at a high school and when we use our pitching
machine our players want to hit more balls than they should. I would
like for an alarm to go off after a pre-determined amount o...Question about common-collector circuits. [17 articles]
pawihte - 2009-11-27 20:08:00
I remember reading a long time ago (I think it was a magazine
article) a cautionary note about operating a common-collector BJT
with the collector tied directly to the power supply rail. It
reco...soundcard problem [10 articles]
steve - 2009-11-27 08:38:00
This is a query about a good brand soundcard.
It distorts any externally input recording, whether from radio, deck
etc.
It sounds like satan is speaking to me.
However, the audio output is o...TV remote IR receiver module [8 articles]
pawihte - 2009-11-27 07:51:00
Are TV IR remote control receiver modules frequency selective? I
know that remote control systems use PWM and the pulses are
decoded by a microprocessor. What I would like to know is whether
the...Switching topologies for power electronics [3 articles]
Matthew Langille - 2009-11-26 11:46:00
What is the difference between a full or half bridge constructed out
of MOSFETs, and one constructed out of IGBTs? What are the pros and
cons of each, and which would be more suitable for a high fre...Linear regulator [7 articles]
Jonas - 2009-11-26 02:35:00
Hello
HAs anyone ever tried to use a linear regulator to regulate a PWM
signal?
My situation:
Input signal, 24V PWM 400Hz
I want to have 12V PWM signal 400Hz
I was thinking of using a linear...