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  1. N

    Logic Gates, Self Study

    What do you have so far? Google "Karnaugh map"?
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    A bloke from Scotland

    MN3207 - Goodness. You can still buy these.
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    Woo-Woo What electronics do these invisible earphones have in them?

    I have to say that it looks like a really bad idea. At that price, even adaptor not included, I'd have to ask whether it is a scam. If you want to know about inductive loop systems, Google?
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    A Stretch

    This second one lists 8 Types of Diodes(100Pcs): 1N4148, 25pcs; 1N4007, 25pcs; 1N5819, 10pcs; 1N5399, 10pcs;FR107, 10pcs; FR207, 10pcs; 1N5408, 5pcs; 1N5822, 5pcs; that's 25 1n4148 diodes, if I read it correctly. The id will usually have it written on the side. SMD parts usually bridge a gap...
  5. N

    A Stretch

    D) is the a diode pointing the opposite way as the one above? and does the label 1N4148 pertain to it? Yes, one diode each way, makes for a symmetrical transfer function. 1N4148 is one of the most common small signal diode types. 1N = diode (technically two-terminal device) 4148 - type of diode...
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    Cost efficient pipe inspection solution

    For organic waste, combustable vapours, the equipment may have to be "intrinsically safe" as well as other certifications. Not sure you can megger a potentially explosive volume. Not sure he meant large rather than just larger than a megger provides. You probably don't want to be putting large...
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    A Stretch

    We'd be guessing about what might give you trouble or what you should watch for. The chip has two amps in it. On the board he shows, he's connected pin 6 to pin 7 to keep the unused amplifier from doing something noisey.
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    Monopole antenna length.

    With access to equipment some might start a little longerand trim the antenna down slowly while the SWR drops. Simple it is, but also rather long for most RC toys and applications. It may be that you can find a more compact design that is also simple.
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    To Short or not to Short- that is the question

    In this style of diagram, only dotted crossovers are connections. BTW: the unlabeled input on the flipflop [from 55 pin 3, to "tact" momentary pressbutton] is probably labeled "CLK" or clock on the data, pin-out.
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    Accelerometer circuit design

    There is a set of slides at https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-777j-design-and-fabrication-of-microelectromechanical-devices-spring-2007/lecture-notes/07lecture24.pdf that has some detail, but also explanation, and circuits involving resistors capacitors...
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    Technique questions

    If you have a printed circuit board, allow eight places for wire. If similarly, you switch to veroboard there are liines of copper connecting lines of holes. You need only allocate a line to ground and solder them all into the same line. https://en.wikipedia.org/wiki/Veroboard If they are to...
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    Using 15A 250V power cord instead of 10A 250V

    Just to add to what Bertus said, it is right that you also checked the voltage rating is the same or higher. You can use one that is the same or higher on both voltage and amperage.
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    I'd like to know how put a digital sound bite on a component

    Topic has come up before. Numerous pre-recorded sounds available. Scroll down on the likes of this link https://www.aliexpress.com/store/group/Sound-Chips-VS-Voice-Modules/1829717_508077653.html?spm=a2g0o.detail.0.0.8c9255f41In27e ISD make a range of recorder, playback devices. The early ones...
  14. N

    frequency analyzer

    Sorry? An electronics & signals guy here. A what? Got a picture? Or a data sheet or something? A couple of keywords for google?
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    Oscilloscopes bandwith and sampling rate (digital)

    You mean that the information was from a single source, Keysight? Or something about combinations of signals? . The video is about probe selection. It's all good. The rise time is used as an indication of the bandwidth required in your measurement system to adequately reflect the rising signal...
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    Logic Design ROM Design QUESTION please help

    Ok, so where are you stuck? Maybe coding the inputs? Are you allowed to simplify the inputs? Using a ROM to implement logic, I guess must be part of your course?
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    Automatic Control Theory my homework help

    Is the expression you gave the closed loop transfer function? I could not see any block diagram. You seem to say that you "couldn't find the poles and zeros" and that "all you could do was find the poles and zeros". By Matlab, do you mean the symbolic toolbox? It appears that you have posted a...
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    SPI Signal Overshoot (to WIFI chip)

    At high frequency everything looks like a transmission line. The waveforms can easily go above the rail, if not clipped to it by something. As you say "overshoot". If I drive a transmission line to a voltage v, it can overshoot, regardless of whether V is the rail or not. . Generally, short...
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    0.01uf. 10n capacitor

    There are some in this package deal from Amazon :) https://www.amazon.ca/gp/product/B07F7ZN695/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1 They seem to be marked "103" as in 10 x 10^3 pf...
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    Placement of Ammeter in Active LM338 Regulator

    (1) Putting the ammeter after the voltage regulation point introduces a current-dependent voltage drop. If you want to monitor the output voltage, then you probably want the voltmeter on the output, that is, after the ammeter. This may apply to the voltage sense of the regulator too so it sense...
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