Basics
in [Electronics]
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AC and meter movements How does one use AC to actuate a D'Arsonval (Weston) meter movement? Is a single rectifier sufficient? Bridge? Movement of interest says "FS = 45.8 uA DC". Extra points for links to drive circuits. Thanks. ... 12 Apr 2010 15:54
True Single Phase Clock Definition ?? Could someone please explain what is meant by a "True Single Phase Clock" . Thanks in advance for your help. ... 9 Apr 2010 08:53
You Mean To Tell Me That They Cannot Measure the Tera Joules Leading Up To An Earthquake? On Thu, 8 Apr 2010 12:38:37 -0700 (PDT), Bret Cahill <BretCahill(a)peoplepc.com> wrote: Too many variables, too little known. � A lot of unknowns isn't a problem if you have enough equations. What is there about "too little known" that you don't understand? The after shocks are coming every few second... 8 Apr 2010 18:34
You're Mean To Tell him That They Cannot Measure the Tera Joules Leading Up To An Earthquake? On Wed, 7 Apr 2010 22:59:55 -0700 (PDT), Weatherlawyer <weatherlawyer(a)gmail.com> wrote: That's about the most useful thing you've ever said. ... 8 Apr 2010 18:34
'scope probes and 100MHz EMI The other day I hooked up a LT1016 comparator (live bug prototype on a 6 X 8 piece of copper clad) to trigger on pulses from a PMT. Pulses are ~ 300ns long and ~100mV high. I sent a low level sine wave into the input (50 ohm terminated to ground) and looked at the output with a X10 scope probe. (TEK TDS2022 2... 9 Apr 2010 23:24
2010 Congress on Computer Applications and Computational Science, Singapore [EI Compendex,ISTP,IEEE Xplore] [ Please forward to those who may be interested. Thanks. ] ================================================================== 2010 International Congress on Computer Applications and Computational Science CACS 2010 http://irast.org/conferences/CACS/2010 4-6 December 2010, Singapore ==============================... 8 Apr 2010 09:29
You Mean To Tell Me That They Cannot Measure the Tera Joules ?Leading Up To An Earthquake? In sci.physics Bret Cahill <BretCahill(a)peoplepc.com> wrote: An earthquake ain't something subtle. If you are having problems tracking the stresses in the earth you need to switch to another field. Bret Cahill Cantelever a sheet of glass. Put a bucket on it and trickle water in, d... 8 Apr 2010 16:19
Question for the gurus... Need to rewire (to add a ground) several outlets in my house, which will require that I locate the breaker serving each outlet. Wondering if I couldn't build my own circuit breaker identifier out of a 9VDC wall-wart and some junkbox parts. Am thinking I could just use the wall-wart to run a 10kHz oscillator, ... 7 Apr 2010 08:58
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Simple oscillator circuit I want a simple oscillator circuit that will give 30 kilohertz. <http://tinypic.com/m/9quype/3> Which of these components do I change to achieve this? What values should these be? If I want a little variance (~10 percent) it should be the resistor, right? What other opamps can I use? Thank you. ... 7 Apr 2010 08:58 |