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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 6231 threads in our archives.

You are looking at page 1 of 624.

The threads with the newest articles are listed first.

OT: Euler's number (2.71828) [9 replies]

Posted by Bill Bowden - 5 hours ago

If e=(1+1/n)^n = 2.71828, does that mean e = 1 raised to the power of infinity is also 2.71828? ...OT: Euler's number (2.71828)

PING: John Fields [15 replies]

Posted by Jim Thompson - 11 hours ago

Hey, John Fields, are you still with us ?:-} ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations...PING: John Fields

OT: Command prompt locks up machine running XP Pro SP2 [3 replies]

Posted by Bill Bowden - 11 hours ago

I can't get the command prompt to work on this XP Pro SP2 machine. It opens up and does the usual DOS commands CD DIR etc. but won't run Turbo Basic without locking up when I try to exit. Screen goe...OT: Command prompt locks up machine running  XP Pro SP2

Automation Makes Us Dumb [33 replies]

Posted by Jim Thompson - 1 day ago

I really believe this is happening... New College Graduates (aka NCG's) seem to have no imagination whatsoever, with boring personalities to match. ...Automation Makes Us Dumb

OT: Best Freezer Temperature. [37 replies]

Posted by Jim Thompson - 1 day ago

Defrosting our upright freezer I discovered that, during the move, the set-point was jostled down to -30°F... no wonder it was running all the time :-( I see all kinds of recommendations on t...OT: Best Freezer Temperature.

Current limiter that doesn't [1 replies]

Posted by Douglas Beeson - 2 days ago

Hi all, I'm stuck. I am trying to limit the current flowing through a relay by using two transistors and a current-sensing resistor. Schematic below. The Spice model works beautifully, but the real...Current limiter that doesn't

Resonance & Pieces of Eight [6 replies]

Started by Bret Cahill 3 days ago

If silver or gold coins had characteristic resonant frequencies then it ought to be possible to scan large areas of sea floor for the loot. Maybe you find something maybe not but at least you have...Resonance & Pieces of Eight

A logic Question [19 replies]

Posted by amdx - 6 days ago

I have a thread running about the 3 speed fan. I made measurements of a known good 3 speed fan. I have 3 sets of resistance measurements, with the fan switch in H, M, and L. Here is a diagram show...A logic Question

Handling HSpice Files

Posted by Jim Thompson - 7 days ago

HSpice2PSpiceNewEdit.pdf, on the Simulation Tools & Macros Page of my website, has been updated with some new library format information. While the title says PSpice, the techniques apply to a...Handling HSpice Files

Current mirror

Posted by Patrick Chung - 1 week ago

Current mirror is inevitable part of input stage of operational amplifiers. Current mirror behaves almost as perfect current source in small current signals application and it has excellent characteri...Current mirror

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