Best products from r/ElectricalEngineering

We found 51 comments on r/ElectricalEngineering discussing the most recommended products. We ran sentiment analysis on each of these comments to determine how redditors feel about different products. We found 358 products and ranked them based on the amount of positive reactions they received. Here are the top 20.

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Top comments mentioning products on r/ElectricalEngineering:

u/JuanPeligroDos · 6 pointsr/ElectricalEngineering

As someone who currently works in this area (particularly Building Automation) I can tell you it's a growing and well-paying field, just check out the postings in your area in websites like Indeed or LinkedIn for current opportunities. If you don't have a profile I recommend you make one in those sites as well.

Also even inside automation, there are many different fields you can work in like manufacturing, transport, process industry, energy management, HVAC, lighting, etc.

To get started I would recommend getting an internship or a low paying position for a short period of time(like a year) to gain experience and then make a jump to a better company.

Below, is a list of a few resources that you can use to kick start your career:

  • Since automation is closely related to electrical installations you should be familiar with the NFPA National Electrical Code if you live in America, if not get acquainted with the equivalent standard in your country.

    This book is an easy to follow guide to the actual technical stuff and saves time in figuring out the jargon of the code itself.

    https://www.amazon.ca/Practical-Electrical-Wiring-Residential-Commercial/dp/0971977984

    You will need to learn how to manufacture control panels that's a skill that's learned on the field but keep an eye out for UL508a - Standard for Industrial Control Panels, or the equivalent in your jurisdiction.

  • The drafting software will probably be dictated by the company you work in, but as a basis, you should always know AutoCAD as is the defacto CAD software for most companies, (there's a world of options out there, myself I'm quite fond of the Eplan software package).
  • For technical knowledge, you can consult the great publications of ATP. I would particularly recommend their books about Motor and Drives.

    http://www.atplearning.com/category/4/electrical-and-electronic-systems

    ​

  • For programming of basic ruled based and PID controllers, check out the courses over at Udemy they are cheap, and they teach very widely used PLCs in the industry like Siemens and Allen Bradley.

    https://www.udemy.com/learn-siemens-s7-1200-plc-from-scratch-using-tia/

  • Learn about automation networks particularly the open protocols like Modbus, BACnet, Profibus, etc. https://www.udemy.com/mastering-modbus-rs485-network-communication/
  • For more advanced control systems it is very beneficial to have solid linear algebra knowledge, and understand the concepts of Modern Control Theory like what Fourier & Laplace transforms actually do. This is so you can do things like Model-Based Controls and Artificial Neural Networks, and all the other good stuff like Machine Learning.
  • Learn a programming language like Python which is free and has a million resources useful for automation. This will not only be useful for automation but as well as other pesky tasks us engineering end up doing like, bill of materials, quotes, project management and such.

    https://www.udemy.com/python-for-data-science-and-machine-learning-bootcamp/

    ​

    Good luck out there, learning is fun!!!!

u/MrAureliusR · 2 pointsr/ElectricalEngineering

Okay, you're definitely at the beginning. I'll clarify a few things and then recommend some resources.

  1. Places to buy components: Depending on where you live in the world, the large component suppliers are almost always the way to go, with smaller suppliers like Adafruit/Sparkfun if you need development boards or specialised things. I buy almost exclusively from Digikey -- they have $8 flat shipping to Canada, which typically arrives the next day, with no customs fees. They have some sort of agreement in place where they cover these costs. This *always* saves money over going to my local stores where the prices are inflated. It's crazy how cheap some things are. If I need a few 2.2K 1206 resistors for a project, I just buy a reel of 1000 because they are so cheap.
  2. "Steer a joystick with an app" Do you mean connect motors to it and have them move the joystick for you? You're going to want some sort of microcontroller platform, along with a motor controller and way to communicate with a smartphone app. You mention you know C++ so it will be easy to switch to C. This is both true and false. Programming for microcontrollers is not the same as programming for computers. You are much closer to the hardware, typically manipulating many registers directly instead of abstracting it away. Each microcontroller vendor has their own tools and compilers, although *some* do support GCC or alternatives. You mentioned PIC, which is a line of microcontrollers by a large company called Microchip. There are 8-bit, 16-bit, and 32-bit PICs, all at different price points and with hugely differing capabilities. Selecting the microcontroller for a project can be half the battle sometimes. Or, like me, you can just go with whatever you have on hand (which is usually MSP430s or PIC32MX's)
  3. A lot of people will recommend the book The Art of Electronics. It's decent, but it's not for everyone. Some really like the conversational style, others don't. Many people who want to get into microcontroller programming and embedded development want to skip over the fundamentals and just get something working. For those, I point them to Arduino and let them on their merry way. However, if you actually want to learn something, I highly recommend buying an actual microcontroller development board, learning the fundamentals about electrical circuits, and programming in actual C with actual IDEs.
  4. As far as resources go, again it depends on your actual goal. Whenever I want to learn a new tool (like a PCB layout software, or a new IDE) I always start with a simple project. Having an end point to reach will keep you motivated when things seem complicated. Your controlling a joystick with motors is a great starting point. I would buy a development board, Microchip PICs are popular, as are ST32s, and MSP430. It doesn't really matter that much in the long run. Just don't tie yourself too hard to one brand. Then pick up some stepper motors, and a stepper motor control board (grab one from Sparkfun/Adafruit, etc). Get yourself a breadboard, and some breadboard jumpers, a cheap power supply (there are tons available now for cheap that are pretty decent), and then jump in head first!
  5. I highly recommend the book Making Embedded Systems by Elecia White, once you've covered the basics. It's a great way to learn more about how professionals actually design things. For the basics, you can watch *EARLY* EEVBlog videos (anything past around video 600/650 he gets progressively more annoying and set in his ways, another topic entirely, but the early stuff is decent). I'd also recommend picking up your choice of books about the fundamentals -- Electronics for Dummies, the aforementioned Art of Electronics, Making Embedded Systems, The Art of Designing Embedded Systems, and even stuff like Design Patterns for Embedded Systems in C. Again, it all depends on what your goal is. If you want to do embedded design, then you'll need to focus on that. If you're more into analog circuits, then maybe check out The Art and Science of Analog Circuit Design. Either way, grounding yourself in the fundamentals will help a LOT later on. It will make reading schematics way easier.

    I feel like I've gone off on a few tangents, but just ask for clarification if you want. I'd be happy to point you towards other resources.
u/girafffegirl · 7 pointsr/ElectricalEngineering

I was in your place a few years ago, and you shouldn’t stress about it. I remember my first circuit lab.. The teacher passed out breadboards and a schematic, and everyone just started plugging away. I was honestly like wtf did I miss something?

It’s like others have said - some kids took classes like this in high school, played with circuits amongst themselves, etc.

Here’s the good news: you WILL catch up! Sure, the other kids have a head start on the basics, but once you start classes like microelectronic circuits, signals, electromagnetics, and controls, you’ll all be on the same page. I was one of the kids that had no circuit experience whatsoever before college (didn’t even know how to connect a resistor, LED, and battery) then ended up with one of the highest GPAs in my class and an excellent job.

My advice to get ahead or at least get familiar -
Buy an Arduino Uno and a kit like this. Arduino has hundreds of basic tutorials online that include both schematics and code. This way you can introduce yourself to the function of transistors, diodes, or other components you have yet to learn about. Not sure what level you’re at. It’s easier to understand circuit design when you can actually physically observe what the components do.

Good luck!!

u/LightEmittingDick · 10 pointsr/ElectricalEngineering

Experimental Methods in RF Design - Wes Hayward

http://www.arrl.org/shop/Experimental-Methods-in-RF-Design-Classic-Reprint-Edition/

RF Circuit Design- Bowick

https://www.amazon.com/Circuit-Design-Second-Christopher-Bowick/dp/0750685182/ref=sr_1_1?s=books&ie=UTF8&qid=1526760096&sr=1-1&keywords=rf+design+bowick

Phase-locked loop Engineering Handbook for Integrated Circuits - Stanley Goldman

https://www.amazon.com/Phase-Locked-Engineering-Handbook-Integrated-Circuits/dp/159693154X/ref=sr_1_1?ie=UTF8&qid=1526759158&sr=8-1&keywords=phase+locked+loop+handbook

High-Speed Digital Design: A Handbook of Black Magic

https://www.amazon.com/High-Speed-Digital-Design-Handbook/dp/8131714128/ref=sr_1_2?s=books&ie=UTF8&qid=1526759237&sr=1-2&keywords=high-speed+digital+design

Handbook of Digital Techniques for High-Speed Design: Design Examples, Signaling and Memory Technologies, Fiber Optics, Modeling, and Simulation to Ensure Signal Integrity - Tom Granberg

https://www.amazon.com/Handbook-Digital-Techniques-High-Speed-Design/dp/013142291X/ref=sr_1_10?s=books&ie=UTF8&qid=1526759527&sr=1-10&keywords=high+speed+digital

As far as RF/Analog IC text is concerned, Razavi and Lee write some great conceptual discussions. Anything from the ARRL is great as well, if you want to look into the perspective of experimental engineers. The textbooks that I noted above come from the perspectives of former design engineers. They can be treated like design cookbooks that are equipped with appropriate discussions that substantiate common design techniques. I hope that these help. For a more general text that approaches a breadth of topics, the Art of Electronics by Paul Horowitz is an absolute classic, and it is a must read for developing the fundamentals strongly.

u/MassDisregard · 1 pointr/ElectricalEngineering

So, for a basic beginning to get into electronics you need:

  1. A soldering iron. For troubleshooting and assembly it is important to know how to solder. There are a bunch of YouTube videos on the subject.

  2. Hookup Wire. 22 AWG solid core is the best wire in my opinion for use in breadboards and general repair.

  3. A Multi-Meter. Probably the most important diagnostic tool you could own. This is not the end all best meter but it is a good DIY soldering experience. You learn some soldering basics while building your own test equipment.

  4. An Oscilloscope. This is a cheap beginner build it yourself scope. This is the second most important tool for a circuit designer to own. This particular kit is good enough for basics.

    This would be a starter kit which would help build up soldering skills and start building up knowledge.

    Getting Started in Electronics is a good read for a beginner to understand basics in circuit theory. I may have seen this floating around the interwebs as a PDF when Radio Shack was going down.

u/mrynot · 3 pointsr/ElectricalEngineering

Read read read and experiment!

https://www.amazon.com/Practical-Electronics-Inventors-Third-Scherz/dp/0071771336 is one of my favorite books that explains in great detail the workings of components, without getting overly mathematical. (Math is critical in understanding the behavior, however.)

Then get a basic scope/dmm (or get access to a lab) and build circuits to exercise your knowledge. It won’t work on the first couple tries, but google is your friend, and thats when the learning really materializes — when you understand why something didn’t work, and when you understand how to fix it.

Youtube is a great reference too. Here are some channels I’m subscribed to. Good luck!
https://www.youtube.com/user/w2aew
https://www.youtube.com/user/engineerguyvideo
https://www.youtube.com/user/LearnEngineeringTeam
https://www.youtube.com/user/sutty6
https://www.youtube.com/user/msadaghd
https://www.youtube.com/user/EEVblog

u/UnityThroughCode · 3 pointsr/ElectricalEngineering

When you start programming the FPGA, I would definitely start with SystemVerilog, there are some really good resources on it, and it is even easier to pick up than Verilog, but gets the same thing done. By and large the tools from Xilinx and Altera get the same thing done as well, but I wouldn't completely write off the Xilinx toolchain. You should also expect to spend most of your learning time at first inside of the simulator, and even when you think you know what you are doing the simulator is an invaluable tool. For learning the ins and outs of SystemVerilog, the FPGA itself is really just a way to demonstrate what you've built, 95% of the learning can happen without it. You will probably also hear a lot about synthesizable vs. non-synthesizable SystemVerilog, for that I would definitely recommend https://www.amazon.com/Logic-Design-Verification-Using-SystemVerilog/dp/1500385786 as its what Carnegie Mellon uses to start off their digital logic classes.

Edit: Also the Pynq board is a great place to start learning about SoC development, while still having high level resources like Python and Linux available should you need them for a project.
http://store.digilentinc.com/pynq-z1-python-productivity-for-zynq/

u/Bleedthebeat · 10 pointsr/ElectricalEngineering

Buy yourself of copy of the art of electronics. Pick one or two topics from that book every day and read about them. It covers pretty much every aspect of EE without going into an insane amount of detail. Use that to narrow your focus once you find something that really interests you. EE is a huge area of engineering and you’re not gonna like all aspects of it but the art of electronics is a great start.

The Art of Electronics https://www.amazon.com/dp/0521809266/ref=cm_sw_r_cp_api_FeY5BbNKDNXSF

Edit: to add on to this. Adafruit has a ton of more entry level friendly tutorials and stuff. Find a component on their store and they’ll have tons of projects and tutorials using those components. They don’t get much in to how it all works. You’re going to have to read for that. Kahn academy is pretty good at explaining stuff too.

u/nabzim · 1 pointr/ElectricalEngineering

Thank you. My only problem with that, is that I would need to create a new stepper driver board, and I'm not too confident in my ability to manufacture a surface-mount pcb. I know that I could send files to a company and have them make it, but I'm also not too confident in my ability to design a good pcb layout (I'm not a trained Electrical Engineer so I've never learned all of the important stuff to consider there). I was hoping for a solution that could possibly be achieved with through-hole components, because I know I could accomplish that, at least...

Looking more into it I realized why it would be impossible to drive an H-bridge with the stepper driver's output... there's no way to translate the micro-stepped waveform to the mosfets. Oh well :(

Do you know if the same control signals (which would normally control the A4988/DRV8825) can be used to control a larger stepper driver? something like this?----> https://www.amazon.com/MYSWEETY-TB6600-Stepper-Driver-Controller/product-reviews/B01MYMK1G9/ref=cm_cr_othr_d_srvw_btm?ie=UTF8&reviewerType=all_reviews&sortBy=recent#RQIUHWYLP7U72

u/ZachStonePE · 14 pointsr/ElectricalEngineering

I am a big fan of Electrical Machines, Drives and Power Systems by Theodore Wildi.

For me, this is one of the most well-rounded and applicable books on electrical engineering. The concepts in the book are well explained and the in-chapter examples are set up extremely well based on the previous paragraphs that lead up to each example.

It has a large chapter dedicated to synchronous generators and control, which is the type of machine used by most large power plants to generate power. I believe it also touches on the different types of basic power generation equipment and the basic heat cycle used in thermal power plants: energy to heat, heat to water, water to steam, steam to drive a turbine, turbine to drive the rotor of a generator.

It is also heavy on distribution and very in-depth on transformers. In my opinion, this is one of the best transformer and rotating machine books out there, period. It is usually the first book I reach for.

The Author (Make sure you click translate on that Wikipedia page) owned his own machine shop in Canada back when this type of technology was new (imagine that), the book was essentially his life's work and based on everything he discovered working with electrical machines which he also taught. He had 17 patents.

Source - I have read and worked through a very large number of electrical engineering books almost cover to cover.

u/midnightcom · 3 pointsr/ElectricalEngineering

May I recommend the ARRL Handbook or one of the other beginner books they have (Basic Electronics https://www.amazon.com/Understanding-Basic-Electronics-Softcover-ARRL/dp/0872590828/ref=pd_bxgy_14_2/137-9572297-3505000?_encoding=UTF8&pd_rd_i=0872590828&pd_rd_r=5052272e-6067-11e9-a944-2f3383ee933a&pd_rd_w=vXd4s&pd_rd_wg=mTQr7&pf_rd_p=a2006322-0bc0-4db9-a08e-d168c18ce6f0&pf_rd_r=19NY554AMXTMYHHSWRDK&psc=1&refRID=19NY554AMXTMYHHSWRDK ). There is also 'The Art of Electronics' 3rd edition available on the archive.org site. These books will get you started with a lot of the theory, basic nodal and mesh analysis, etc. AllAboutCircuits.com is also a good resource with a somewhat interactive textbook. Khan Academy is good for math. You need Calc I, II and III as well as Differential Equations as a minimum for EE. Then you will want to pursue your EE undergrad if it all seems interesting. Getting your ham radio license is also a good intro to EE as well as applying a lot of the theory where most schools fall short.

u/marsairforce · 2 pointsr/ElectricalEngineering

As was said before, these are rotary encoders.

I had an old piece of gear with these. One knob was broken. I discovered there are many options to consider for what the encoder is:

  • switch or no switch - these look like the kind that do not have a push switch
  • detent or no detent - if the shaft makes clicky feeling feedback when you turn it. I am guessing these don't because they are the tone stack knobs.
  • The number of pulses per revolution. This is not possible to tell by looking at it. or from detents. But usually these are 24. There are other kinds too
  • The orientation - vertical or 90 degree. these look like vertical right.
  • the pin type - surface mount or pc pin. hese look like pc pin.
  • panel mount or pcb mount. These look like panel mount because the threaded screw around the shaft
  • encoder tech (mechanical or optical) - these are mechanical
  • the output type (quadrature, binary) - because the 3 pins, these are quadrature
  • the shaft length - if the shaft is plastic or metal is not as important. these look like 20mm
  • the shaft pattern (straight, fluted, or slotted) - these look like slotted.

    So probably this https://www.digikey.ca/product-detail/en/bourns-inc/PEC11R-4020F-N0024/PEC11R-4020F-N0024-ND/4699190

    ​

    In general, I used their search filters, here is a link to one less narrowed down too https://www.digikey.ca/products/en/sensors-transducers/encoders/507?k=&pkeyword=&sv=0&pv545=142&sf=0&FV=fffc0076%2Ca4019a%2C1140291%2C6240002%2Cffe001fb%2C3400006&quantity=&ColumnSort=0&page=1&pageSize=25

    ​

    To remove these from the PCB, you need to be good at desoldering. I used a solder iron with desolder wick

    ​

    I have this solder station https://www.circuitspecialists.com/csi-premier-75w-Soldering-Station.html

    A good solder station is important as the tip is very fine point, the heat is regulated and can be adjusted. I used about 350 to 400 degrees C heat. And the device is safe to use for static sensitive boards.

    And solder wick https://www.amazon.ca/NTE-Electronics-SW02-10-No-Clean-Blue-098/dp/B0195UVWJ8/ref=sr_1_1?keywords=solder+wick&qid=1565443539&s=gateway&sr=8-1

    Having some fine tweezers is good too. I have these https://www.amazon.ca/TWEEZERMAN-Stainless-Tweezer-Assorted-Colors/dp/B000782SQY/ref=sr_1_54?keywords=tweezers&qid=1565443795&s=gateway&sr=8-54

    ​

    It is very important to not damage the circuit board when desoldering. be patient. The hard part with taking out rotary encoders is desoldering the mechanical support metal clips on the sides. These usually are wider and require more heat and time to melt and more messing with the solder wick to get all the solder out. I recommend desoldering the pins first, using small tweezers to move the pins to make sure they are loose. then work with the iron to alternate the mecanical support pieces to heat and gently rock back and forth.

    ​

    Another thing migh to try is to destroy the old broken encoder, small cutters to cut apart the pins and the supports. Just be careful again to not damage the other parts and the board. Then you can easier desolder the loose bits of metal remaining in the holes.

    The approach worked well for me. I had a few iterations, since the first time I replaced an encoder, put the device back together, then i found a different encoder had stopped working. So back apart and I had to desolder it as well. But then I went on the learning curve of getting an encoder with the wrong number of pulses per revolution. It was a big wheel for the options, so it had 24 detents, but 12 pulses per revolution, and a push button switch, so some kind of special snow flake.

    If these encoders you have here are just regular encoders without switches it should be possible for it to be repaired.

    Of course if you don't have the tools already then it can be very expensive to ge them just to do this. I would recommend then finding someone who does have the tools and experience doing this.
u/d_phase · 1 pointr/ElectricalEngineering

I would recommend the Art of Electronics (or the ARRL Handbook) if you are looking for more of a reference style text. Very thorough, but not something you would want to read front to back.

Assuming you have your circuits basics down, a good text to really start learning how to design circuits would be Microelectronic Circuits by Sedra and Smith which is your undergrad text on introductory analog/digital circuits. This one you can definitely read front to back (but it's big). And then if you really want to get into the thick of things, you could read Analysis and Design of Analog Integrated Circuits AKA Grey and Meyer which is your advanced undergrad/graduate text on analog circuits. There are many alternatives to these texts, but these ones are basically bibles.

u/whiskeysixkilo · 3 pointsr/ElectricalEngineering

Personally I love Practical Electronics for Inventors. It is massive and covers the basics as well as so many different subdisciplines that you can pursue. Also to my surprise it is only $20.

But more practical advice would be to research your university’s EE course path and read through the course syllabi. Find out what topics are covered in the core/required courses. See what electives you think you’d be interested in. Consider buying 1st edition (cheaper) versions of one or two or more of the textbooks that are used in those courses.

u/TexasNortheast · 7 pointsr/ElectricalEngineering

Get a practical electronics book right off the bat if you are into electronics. Something like this (or perhaps this):
https://www.amazon.com/Practical-Electronics-Inventors-Third-Scherz/dp/0071771336?ie=UTF8&keywords=electrical%20engineering&qid=1460691202&ref_=sr_1_1&s=books&sr=1-1

Also note the price-tag. This book is a gem.

University textbooks often don't have the right mindset to them and now that I've finished my degree and out in the workforce I'm realizing this. You want a book that will actually teach you how to build something. The field of EE also loves to apply a whole bunch of meanings to a few terms, for example "electricity" and "grounding", which can very easily confuse and mislead beginners. Practical books tend to address these things a bit better in my opinion. This applies to any field - I'm an Industrial Engineer (power, motors, control, safety) and also own a book of this type on my field - here in Canada we have Techs and Engineers. The Techs tend to learn how to actually do things, and these are the types of books they read.

Regarding textbooks: something I've only discovered recently is buying Eastern Edition textbooks as they're much cheaper and essentially the same thing.

u/gpmandrake52 · 2 pointsr/ElectricalEngineering

I recommend this book to get started.

Practical Electronics for Inventors, Fourth Edition https://www.amazon.com/dp/1259587541/ref=cm_sw_r_cp_apa_i_9lFwDbXMV8B57

It covers electronic basics and some more advanced components.

PCBs aren't too bad for hobbyist work; kicad is free, oshpark is cheap and fast. If you're planning anything at high frequency though, that's kind of a different level.

Be patient with yourself.

u/edjumication · 1 pointr/ElectricalEngineering

Is there stranded wire you could suggest for this application?

And yes I typically mount a junction box to a tree and use These or barrier strips inside the box. Then after running through ip68 strain reliefs I let the wire hang down to the ground and loosly zip tie the wire to said tree to help reduce some potential strain.

The whole system is kind of pieced togther throughout the years before I started using different types of wire and different types of connections everywhere. The old technician was very dilligent but our budget is very tight so he used whatever was available.

In an ideal world with a large budget I would tear everything out and build a single armored, hermetically sealed system that uses common connectors everywhere and is completely separate from the chairlift system, but that may not happen for a long time.

u/zachabt · 7 pointsr/ElectricalEngineering

Oscilloscope kits are great. I just did this one a little while back. It was a lot of fun and handy for the price. They sell an acrylic case kit separately too.

kuman 3O-IUX5-O0TZ DSO 138 DIY Kit Open Source 2.4" TFT 1MSPS Digital Oscilloscope Kit with DIY Parts + Probe 13803K, SMD pre-soldered https://www.amazon.com/dp/B0195ZIURK/ref=cm_sw_r_cp_apa_i_LzIQDbP8TT31D

I also got this little signal generator kit to check the O-scope function.

Naravis Gelatinized Black Maca... https://www.amazon.com/dp/B01HM70CMY?ref=ppx_pop_mob_ap_share

u/ff45726 · 3 pointsr/ElectricalEngineering

Why not these? https://www.amazon.com/Valley-Enterprises-UR-3-2-Wire-Splice/dp/B004EEMJS4 This is pretty standard for splicing telephone line and they are super quick.

u/hwy95 · 2 pointsr/ElectricalEngineering

The Art of Electronics - The EE bible
ARRL Handbook - Great for analog and RF circuit knowledge, but tons of general stuff too.
How to Diagnose and Fix Everything Electronic - For hands on, real world circuit diagnosis. I've been doing this a long time and I still learned a lot from this book. This book will save you a lot of magic smoke.

u/lexguru86 · 0 pointsr/ElectricalEngineering

Thanks!

Did some quick research and found some relays that appear to be pretty straight forward.

I already bought and have these however: https://www.amazon.com/Pack-EPAuto-Relay-Harness-Bosch/dp/B072QXDZRD/ref=sr_1_4?ie=UTF8&qid=1550813873&sr=8-4&keywords=12v+bosch+style+relay

​

Is it possible to make it work with these? Would it be as simple as having my "orange circuit" on the 30 and 87 pin and push the 12v to the 86 and ground to the 85?

​

If not, would this work?

https://www.amazon.com/Support-Relay-Spst-4pin-Socket/dp/B00RVCFNCK/ref=sr_1_10_sspa?ie=UTF8&qid=1550819958&sr=8-10-spons&keywords=SPST-NC+12v&psc=1

​

edit: I put a 10k resistor on the circuit so I could test the open and close when 12v was introduced. I used the example explained above, under the first produt link, as my circuit. When there is 12v power applied, the circuit is closed and it reads 10k. I need to reverse that, where the circuit is always closed without power and only opened when power is introduced to the relay. Do I have the wrong relay?

​

Thank you so much!

u/captainpsychosaint · 2 pointsr/ElectricalEngineering

I found this book extremely helpful- there are also questions at the end of each section.

Try looking at the used copies for better pricing.

Electrical Machines, Drives and Power Systems https://www.amazon.com/dp/933251853X/ref=cm_sw_r_cp_api_NcoRBbEWEQ4WX

u/SavvyNik · 3 pointsr/ElectricalEngineering

I would recommend Practical Electronics for Inventors. This book is awesome for all electronic concepts. Plenty of examples and working problems. Here’s a link on amazon: https://www.amazon.com/Practical-Electronics-Inventors-Fourth-Scherz/dp/1259587541/ref=mp_s_a_1_1?keywords=electronics+book&qid=1567720843&s=gateway&sr=8-1

u/breefield · 1 pointr/ElectricalEngineering

They don't make a clicking sound so I'm thinking they're solid state.
https://www.amazon.com/gp/product/B07FJZ67QM/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

I had the one other inductive relay protected with a flyback diode when this occurred. They are marked on the main diagram as "diode" and "TODO: Add diode"

u/fatangaboo · 3 pointsr/ElectricalEngineering

I recommend (Bob Cordell's audio power amplifier book) , (The Art Of Electronics 3rd edition) , and (Ron Quan's DIY radio book)

If these seem too advanced, check out the author "Forrest Mims III" and/or the "who needs theory" book (Practical Electronics For Inventors)

u/RylesC · 2 pointsr/ElectricalEngineering

"The Art of Electronics" is a good option. They approach circuit design from a practical standpoint.

https://www.amazon.com/Art-Electronics-Paul-Horowitz/dp/0521809266/ref=dp_ob_title_bk