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Sound Card LCR Meter

Started by Bob Masta in sci.electronics.basics●11 years ago ● 5 replies

[SHAMELESS PLUG] Possibly relevant to "On old electrolytic caps" thread, but also for general interest, I've just released Daqarta v7.60 which...

[SHAMELESS PLUG] Possibly relevant to "On old electrolytic caps" thread, but also for general interest, I've just released Daqarta v7.60 which includes a macro "mini-app" to use your sound card as an LCR meter. (Many thanks to Robert A. Macy for inspiration and advice on this!) The basic idea is that the sound card outputs a sine wave (about 1 kHz default) that drives a voltage divider m...

2N7000 Spice Model

Started by Jim Thompson in sci.electronics.basics●11 years ago ● 16 replies

Last time I tested several 2N7000 Spice models (2005), there was huge variance between them, and some down-right non-physical behavior. Has...

Last time I tested several 2N7000 Spice models (2005), there was huge variance between them, and some down-right non-physical behavior. Has anyone found a better 2N7000 model since then? ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Anal...

Zero Cross Detection circuit for review

Started by Douglas Beeson in sci.electronics.basics●11 years ago ● 20 replies

Diode LTSpice

Hello all, I'm back again with an audio zero-cross detection circuit that I have desig= ned based on valuable feedback from some of you...

Hello all, I'm back again with an audio zero-cross detection circuit that I have desig= ned based on valuable feedback from some of you (notably Jim Thompson and J= ohn Fields). I am trying to gate an audio signal while avoiding clicks as i= t switches on and off. I'm submitting the LTSpice file here for your comments and also to ask why = one thing does not seem to be working as intende...

Simulating Power Bandwidth

Started by Jim Thompson in sci.electronics.basics●11 years ago ● 24 replies

Generator LTSpice Opamp PSpice

I'm trying to do a simulation to show power bandwidth for a (high power) OpAmp versus compensation capacitor. In the lab I would simply crank...

I'm trying to do a simulation to show power bandwidth for a (high power) OpAmp versus compensation capacitor. In the lab I would simply crank up the signal generator amplitude until the output became triangular rather than sinusoidal. Collect all the data for peak amplitudes versus frequency and then plot. Any ideas how I might do that automatically in a simulator, generating a family...

Benchtop Power Supply Options

Started by Jurd in sci.electronics.basics●11 years ago ● 88 replies

Power Supply

Hello again, It is time for me to acquire a better bench top power solution. Most of the time I will use it to power a breadboard for...

Hello again, It is time for me to acquire a better bench top power solution. Most of the time I will use it to power a breadboard for experimentation. I used a wall wart for awhile until it got super noisy, and batteries are a hassle. I was about to go for something like this: http://tinyurl.com/qexphfy And then attach something like this: http://tinyurl.com/qc5e9ma to the leads ...

4410 Solutions for Math, Statistics and Probability Books - part2

Started by Anonymous in sci.electronics.basics●11 years ago

List of Solutions Manuals and Test Banks=20 ________________________________________ contact to : mattosbw1@gmail.com ...

List of Solutions Manuals and Test Banks=20 ________________________________________ contact to : mattosbw1@gmail.com mattosbw1(at)g= mail.com =20 NOTE : "THIS SERVICE IS NOT AVAILABLE FOR : CHINA, INDIA, RUSSIA, LEBANO= N, PAKISTAN, IRAQ, IRAN, PHILIPPINES, NORTH KOREA, NEPAL, BANGLADESH, SRI L= ANKA, MALDIVES, BHUTAN & COLOMBIA". ...