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  1. Braeden Hamson

    What do you reckon the most produced component is?

    Of course "resistor" is the obvious answer, but I'm referring to specific components. 10K resistors? I wonder what the most numerous IC is.
  2. Braeden Hamson

    Why does a LED tube light need a ballast?

    So I was at home depot and I laid eyes on a nice 4ft LED tube light for $7. https://www.homedepot.com/p/Philips-40-Watt-Equivalent-4ft-T12-LED-Light-Bulb-Cool-White-4100K-468702/301154647 I figured this would be great for projects because they have the tube and everything, I figured I don't...
  3. Braeden Hamson

    Op Amp Troubles

    Hey guys, I'm working on my joystick. I have some hall effect sensors on it that provide the angle sensing, I forget their part number but they're not the focus here. The issue is the ~30º of movement the joystick has only creates ~-2.5V difference between the high and low output if the hall...
  4. Braeden Hamson

    Running house LED lights on AC

    I don't know whether to classify this idea as hairbrained or not half-baked. Regardless, I'm not taking this very seriously. So if you'd like to have a bit of fun, read on. I've been thinking a great deal about the power lost in the LED lights I have in my house. They all contain AC-DC power...
  5. Braeden Hamson

    Power supply efficiency

    I was looking at this here power supply, https://www.amazon.com/Generic-Replacement-Adapter-Inspiron-19-5V-3-34A/dp/B003U8HV4M It outputs 19 V at 3.34 A for a Wattage of 65W. Input is (Lets say) 120 V at 1.2A, I think the power there is 144W. Does this mean that ~80W is wasted, and that the...
  6. Braeden Hamson

    Audio Amp vs Op-amp?

    Hey guys, I'm working on a simple audio based light show for school. It has frequency dependant filters whose outputs power LEDs. The effect of this is to visualize the amplitude of certain frequencies in a song. As a part of this project I need to power a speaker. So I went to my schools shop...
  7. Braeden Hamson

    Relationship between theta and theta v theta i

    Hi guys, I'm working with AC circuits. I have the equations for avg power and reactive power. P and Q resp. Those equations have a compent sin/cos (theta v - theta I) . Additionally P Q and S (complex power) form a triangle whose angle PS is Theta. Is theta=theta v - theta I? I feel like this...
  8. Braeden Hamson

    VU meter with zener diodes?

    Hello guys, For my electronics course I've been given an open ended problem to create a light show that reacts to music. I'm going to use some filters to have an analog voltage output proportional to the amplitude of the frequencies in that band. I don't have any questions about that portion...
  9. Braeden Hamson

    Want to answer a few questions for my technical writing class?

    Hi guys, So I've been given the assignment to ask people in technical fields how they use writing. If you feel like answering one or all of the questions I've written I'd really appreciate it. (Optional) What is/was your job and what did you do there? What kinds of documents have you written...
  10. Braeden Hamson

    Don't connect vs no connect

    I came across an IC that had pins labeled no connect and don't connect. This was on the same IC. What's the difference and what should I do with each?
  11. Braeden Hamson

    Anything you wish you knew/glad you knew at the start of your education and/or jobs?

    I'm working on a time machine and I'll be taking messages. :D I was actually just curious, I suppose I would tell my 6th grade self that yeah algebra is useful. I still learned it all, but a bit too begrudgingly.
  12. Braeden Hamson

    Function generator output oscillations in an RLC circuit

    Hey guys, (This post is a bit rambly, read and answer at your leisure) Right now I'm covering RLC circuits. I had a series RLC circuit connected to an oscilloscope and function generator. I used a BNC T splitter on the output of the FG and a BNC to BNC to connect the FG to the scope. I then...
  13. Braeden Hamson

    Quick equivalent resistance question.

    So learning about inductors at the moment, and I came across this resistor arrangement and I'm not sure how to solve it. The inductor which has been excluded from the diagram connects between point A and ground. I need to determine the resistance "seen" by the inductor, but I'm not sure how...
  14. Braeden Hamson

    Well there's your problem! Can you help me identify this part?

    TL;DR I need to replace what I think is a diode labeled AXJ82 So my brother pulls his Blofeld synthesizer out of his clothset, saying it turns on but does not output audio. I say okay and begin to take a look at it. He points me to a 5K Ω resistor which commonly goes bad. I notice there is...
  15. Braeden Hamson

    Switching a transistor with "body voltage"

    So I was messing around with a S9018 http://vakits.com/sites/default/files/S9018%20Transistor.pdf In which 3 V from my PS was connected to the collector and an LED was connected to the emitter. The LED was then connected to the - of the power supply. I connected the base of the transistor to...
  16. Braeden Hamson

    Whats the point of the Op-Amp in this D/A converter

    I've been tasked with building a digital to analogue converter for my class. Like so: https://www.electronics-tutorials.ws/opamp/opamp11.gif It needs to have 5 volts in on the inputs and 1 2 3 4 on the output corresponding to pressing 1 2 3 4. I understand how to do this, but I don't see why I...
  17. Braeden Hamson

    "Spikes" on an uncalibrated oscilloscope probe, and an RC circuit question.

    Sorry, I don't really know how to google this. So I was using an oscilloscope in my school's lab today, our lab procedure had us clip our probes to the scopes 1 kHz calibration wave form. I know this is to get rid of what I've heard being called "batman's ears" see my picture. This picture is...
  18. Braeden Hamson

    Will you become a ghoul from climbing a radio tower?

    Fallout references aside, my friend showed me this video of these base jumpers who climbed a transmission tower: And it got me thinking, is the radiation coming off this tower strong enough for it to be unhealthy to be that close for the time it'd take to climb?
  19. Braeden Hamson

    Cell phone call routing

    I've been looking around on google for a bit but I can't get around call center call routing. Which is if someone calls my tech support line at 5:00 pm it will go here vs if they call at 5:00 am, which is cool unto itself. My question is if I normally live in Oregon and I suddenly fly to New...
  20. Braeden Hamson

    Trouble activating a mosfet with a 555 PWM circuit

    I'm using a standard PWM circuit like so: https://cdn.sparkfun.com/assets/7/d/0/2/4/52433239757b7fb7798b4567.png The timer circuit is powered to ~4.25 v with an LM317. The load which at this point is some LEDs is being powered by an IRLZ44N mosfet. Both circuits work, just not together. When put...
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