Electronic schematics?

I need a free electronic shcematics Program that checks my circuits.

Posted by OrIsIt 6 years ago


Battery Power Capability (C)

I'm trying to understand a little bit more about batteries. I've learnt so far: "Volts,  amps, and  watts measure electricity. Volts measure the “pressure” under which electricity flows. Amps measure the amount of electric current. Watts measure the amount of work done by a certain amount of current at a certain pressure or voltage." Now I'm interested in knowing the maximum amount of energy you can draw from a battery at any one time. I presume you can't instantly drain a batteries full energy capacity at any one time. I have read that: "The way the power capability is measured is in C's. A C is the Amp-hour capacity divided by 1 hour. So the C of a 2Ah battery is 2A. The amount of current a battery 'likes' to have drawn from it is measured in C. The higher the C the more current you can draw from the battery without exhausting it prematurely. Lead acid batteries can have very high C values (10C or higher) , and lithium coin cells have very low ones (0.01C)" Am I write in saying a 1.2V 1200mAh has a power capability of 1.2C? In which case I should only ever draw 1.2C or less to preserve the battery? How do I increase this amount when using 2 batteries, if I wire two batteries together does the power capability increase to 2.4C for the above example batteries? If so do I have to wire them in parallel or series for this to work? Thank you.

Posted by jakespikey 6 years ago


Electrical excitement (not)

I was going to fry some potatoes, but my electrical ring failed with arcing, smoke, noise & sparks... I'm not happy. I've got the ring to replace, a pan, and I've got sooty-oil to clean up. And no fried-food. And the place stinks of burned-oil. And I've lost / spoiled half a bottle of fresh oil. Oh, and I'll have to pay for the electricity that did this too. And I need some 30A fuse wire.

Posted by lemonie 8 years ago


Does electical tape melt easily?

I've coated my usb (the circuit board, split the case) in electrical tape, but the USB gets warm (as expected. Will this damage my USB, despite the fact that it's a useless 128mb one anyway?

Posted by Noodle93 10 years ago


Electrical components

Is there any components that set the minimum energy to pass through? When the energy is lower than the fix amount , no energy will be passing through.  I'm trying to make a project. I'll put a dynamo on my bicycle, and it will be connected to 3 LEDs. When I cycle in low speed, only one LED will light up. When I increase my speed to certain level, 2 LEDs will light up and if it passes a certain speed all LED will light up. Any idea?

Posted by GohC 2 years ago


Learning about electrical dohickies

I'm not proud of this, I don't know very much about electronics, electricity and the components used. However, what I do know is that when there are three poky things on the end the thing-a-mabobber you either have to put it into a thingy with three holes or, if there are only two holes, you have to get a hammer and beat in the third hole. After that my electrical knowledge wanes.So I'm trying to find an avenue to increase my knowledge about the subject but I'm having a hard time at it. I've checked out books from the library but, being that those books are written by engineers, they're coded so that only those who posses the engineers genome can understand them. I stopped by a local community college, explained to an instructor there what I was wanting to learn and after a few minutes he tells me that I'd have to spend the next year or so learning electrical theory before I could even get started doing what I'm interested in doing. Maybe he's right, but I just want to cover all my bases before diving in.I have no urge to become an electrical engineer, but I would like to know things like how to repair an extension cord correctly and safely. I'd like to know how to hook up a small DC motor to an AC power supply, use a bread board to make blinking lights or something then transfer them to something more permanent. I'd like to know how to wire up a light table, know what rating of switch I would need and why. So nothing all that difficult, or should I say nothing I think is all that difficult.I know the standard reply here is "just start playing with stuff" but considering that this is electricity and components can add up money wise, there is a risk of fire, and I have no urge to give myself electroshock therapy, I was wondering if anyone here could at least point me in a direction to start. I've considered getting one of those electrical sets that you get for kids to learn with but I don't know if that's a decent place to start or not.So any feedback would be very much appreciated.Take Care, ChrisP.S. I'm just joking about getting a hammer and beating in a third hole. Instead you get a pair of wire cutters and cut off the poky thing that doesn't fit ;)

Posted by astro347 8 years ago


pinball machine

I have a 1973 gottlieb pro-football (EM) pinball machine,(EM) stands for electro-mechanical i`m really hoping to get this thing working this year.

Posted by mr.origami 9 years ago


Flat Wall Plug Adapter? (for DIY extension Cords)

There is an extension cord (3 wire) which has a flat wall connector - great for tight spaces.  I've bought some over the years (about $12 each at Amazon) - but want a supply of the plugs so I can make my own custom/length cords.  I looked at a few electric parts places but no luck.  Any ideas/sources for a less expensive flat plug adapter? One option  is to replacc the wall outlet with a recessed outlet - but that does not work for me. thanks

Posted by 222fbj 7 years ago


Fixing a charger

I was charging my Toro 20360 when my son tripped on the cord, jerking the wires out of the plug (mower end).  I checked with Radio Shack and they only have 4 connected prongs instead of single ones.  Where can I get replacements for the prongs that insert into the plastic plug in? MK

Posted by mazelady 4 years ago


conductive paint

Do any of you have experience with conductive paint? does it have much resistance?  i'm thinkin of heating car windsheild in much the same way that the rear window is done.  i've cracked 1 or windsheilds while defrosting. seems thermal shock from heat vents on dash are too much. just got a new windsheild.  don't want to break it.

Posted by Toga_Dan 3 years ago


Transistor Trouble

Hi there, I have been working on controlling a large toy car with a wireless receiver from a smaller toy car, the motors I need to control are rated for 9V but the receiver only outputs 3V, reversing polarity to reverse the motor. I made this schematic using transistors to handle the voltage, but when I built the circuit the transistors began to heat up and there was no output. I am not sure why this is happening, so any help would be greatly appreciated. Thanks, Daniel

Posted by daniel12354 2 years ago


Electrical Engineering Project Suggestions

Kindly Suggests Electrical engineering projects for second semester of Undergraduate.

Posted by Ali khann 4 years ago


ELECTRICAL COMPONENTS NEEDED

I need help with few things and the main one is that i need some electrical components which are not available in my locality.If anyone living in india is ready to help me i will  be very thankful.

Posted by pranjal12 5 years ago


Need a list of places to get electrical components,other than online!!!

I need a list of stores that i could physically go into to get electrical components(transistor,capacitors,potentiometers etc.) AND I ALREADY KNOW ABOUT RADIOSHACK!!!

Posted by wesie42 10 years ago


tapping into trailer electrical adapter

Because I am an OCD nerd I am already looking forward to next Christmas... and wondering if I can hang a wreath on my spare tire -- and light it using my jeep's trailer electrical hookup. Thanks for any info!!

Posted by Purple Chez 3 years ago


Question about switches...

I am very new to electrical projects. Please be nice. Does it matter which side is positive or negative on a switch?

Posted by Soileau 10 years ago


Getting kids interested in Electrical Engineering program

Getting kids interested in Electrical Engineering I am starting an entry level program for High school students in Electrical engineering. This program is going to be run in the upcoming summer. I believe it is going to be over a course of one month in July. I would like some help from you guys. I am trying to come up with list of topics and activities to cover with them. This is what I have so far. Voltage, Resistance. Explain different components and their functions Have a few activities with the components that I will introduce. So does any one know any topics I should cover and different activities that would supplement the topics.

Posted by DELETED_kclv1988 10 years ago


Does Electrical Tape Have A Use?

Hello, I was wondering if black electrical tape actually had a use? I ask because it doesn't seem to really stick to anything for very long. It eventually becomes un-done from what it was wrapped around and then leaves a sticky residue behind. Am I not using it properly or not using it the way it was intended? Does anybody else have this problem? (I have the same problem with that Saran clear plastic wrap stuff, it doesn't stick to anything but itself. So, it could be user error.) Thanks J

Posted by sdtacoma 9 years ago


Do I need to use a metal box for an outlet?

I'm making a concrete art piece and want to insert an electrical outlet inside it.  Is it okay if I embed the outlet in the concrete or is there a reason I need to use the metal outlet box like is used in the wall?

Posted by mazelady 2 years ago


Electronic/Electrical Pinouts

. Pinouts.ru has pinout diagrams for just about everything.. From their home page: "We are collecting information about hardware interfaces of modern and obsolete hardware, including pinouts of ports, expansion slots, and other connectors of computers and different digital devices. This information is essential for everyone who wants to analyze insights of modern computer hardware, explore ways it's works, design devices with computer connection."

Posted by NachoMahma 10 years ago


Where can I get a giant electrical throw switch?

Hey.  I need to find a giant switch (1-3 feet?) that I can install for a mostly decorative purpose, but I have no idea how to find something like this, or what it would be called.   We're redoing part of the office at work (small web dev company) and rather than hide the breaker box, we want to embellish it.  One guy is going to put in a led panel that shows the status of each site we run.  I suggested we also put in a huge throw switch that is labeled 'Interwebs: on/off'.  Boss likes it, and tasked me with finding such a thing.   Ideas?

Posted by sing1ejack 6 years ago


Bottle roller help

So i have bottles ranging from 60ml to 500ml that i'd like to make a roller for mixing. The issue is that the only mixers like this are in the $1,000 and up range, it's honestly criminal. see here http://amzn.to/2h6gHYG Anyone have ideas for parts to make a super cheap version of one of these?

Posted by Jollyriffic 1 year ago


Wiring a 3 bulb lamp

I know this is basic, but I'm not familiar with wiring anything that could potentially burn the house down so I feel its better to ask. I'm wanting to wire up three lights to go over my basement workbench to all work on the same switch. The image shows what I planned to do, was just wondering if there an expert out there who could tell me if this is going to be safe? Would 60 watt bulbs ok?

Posted by REDnumber5 8 years ago


Distant projects with the kids

Hey everyone. So I'm back on the road for work and hundreds of miles from my amazing wife and awesome minions. It's hard traveling for work and being the husband and father the family expects you to be. So my wife came down to visit for the weekend and I got to thinking. My daughter loves building things and doing electrical projects. So I took the wife to the local hardware store and sent her home with parts and pieces. This week my daughter and I will be building a lamp for her nightstand. I bought her a 1/2" NPT flange, a 10" 1/2" galvanized pipe, a 1/2" coupling, a 1/2" to 1/8" adapter, a 1/8" nipple, an 8' lamp cord, and a lamp socket with a turn key switch. She put it together tonight to get an idea of how it will go together. She's super excited and happy to be doing a project with dad albeit over facetime. It should turn out pretty good. Guess why I'm posting is I just need some community. The hotel room gets lonely and there isn't much to do unless I'm working. So I'd like to strike up some conversations and just learn some new stuff. Thanks for the support and the great uploads. You're all a huge inspiration. Thank you.

Posted by scott.t.wetter 3 years ago


Help with T5 Fluorescent Light

I'm adding a 9" T5 UV light to a small project I'm making. I found a cheap G6T5 Bulb and a Ballast but when I went to purchase the Sockets for it, I ran into a problem. The Bi-pin T5 sockets come in Shunted & Non Shunted and I have no idea which one I need. What is the difference and how would I tell which one to buy to finish my light? Once I have all this I'll have to figure out how to wire the thing. But first I need to know which sockets I need to buy. THANKS!!

Posted by mrreno 10 years ago


WANTED-Pattern Testers for Thesis Project: Knit Lamp Post

Hi everyone, My name is Kim and I’m a senior at MIT.  This semester, I will be working toward completing my thesis project, and I could really use some help to do so.  I’m an avid knitter who has spent the last four years studying architecture, and I plan to bring my two passions together in the thesis which I am preparing.  In a nutshell, I will be designing lamp posts which will be completely self-sufficient.  They can exist off of the electrical grid of a city or town and will be constructed from knit fabric.  Thus, they can be constructed by a few members of a community, allowing them to take action to solve problems in their own neighborhoods rather than waiting for the government fix them.   My project is about community empowerment and giving the power of construction and repair to those who need it most.  If you’re at all interested in learning more about my project, you can message me or read more of my thesis proposal at the link at the end of this post (I promise, it makes more sense than what I just typed out here).  I could really use some help in completing this project, though.  I need to find a few willing people or groups of people who would like to knit a lamp post for themselves or their communities.  I need people to test my pattern to see if it actually works.  If you’re interested, please e-mail me at kimennel [at] gmail [dot] com, or message me here.  If you want to help, I’ll be sending out a package to you with materials, knitting needles, and instructions in a couple of months.  It’ll be free of charge for you, and all I ask in return is a bit of feedback about the pattern and some photos of the construction process and final product.  So, if you want a free lamp post, please please please, let me know.  Thanks guys :) Here's the link: http://www.mennels.com/kimennel/Thesis%20Proposal.pdf

Posted by kimminentdanger 6 years ago


Creative Electrician or Consultant Wanted for Short-Term Project (Good money.)

I'm the owner of a 3-story commercial building in New York City. I basically have 2 tenants: One using the ground floor and basement, the other using the 2nd and 3rd floors. I am trying to sub-meter the electrical use of each tenant so they can pay for their own usage (and have an incentive to conserve). For the last several months I have been interviewing licensed electricians. Apparently, though there are two separate fuse boxes (It's an old building.) they each have both upstairs and downstairs circuits mixed up in them. This, I have been told, will make sub-metering a more complicated and expensive job than it should be (potentially over 5 figures.) as it will involve rewiring. Now, in my experience, most licensed electricians think Arduino is a kind of pasta. They are not hackers, not creative, and never look for unconventional solutions to solving problems. (I'm not knocking the guys, but this is what joining the rat race for survival does to people--especially in NYC.) It never even occurred to me that there might be an unconventional solution to my problem until I spotted this 'ible. If you: Have the skills to implement an adaption of this set-up, or have a proposal of your own as to how to solve my problem; are close to New York; and would be willing to consult with a licensed electrician and myself, you may very well be able to save me $5k or $6k, 60% of which would go to you if the plan was adopted and worked. (Otherwise I'd still compensate you for your time at a rate we both agree in advance to be fair.) Anyone interested please PM me.  Thanks. PS I don't think of myself as a businessman or landlord. I inherited the building, would sell it in a heartbeat if my brother (who I co-own it with) let me, and I'd rather be writing and making stuff out things I find dumpster-diving than collecting rent checks. But since I'm currently stuck in the role, I'm trying to make the building as green as I can.

Posted by joachimboaz 7 years ago


Electrical Enthusiast or Engineer Needed

Looking for someone that can help me design a system. This will include pcb layout and incorporation of wireless sensors or local wifi network and testing of the system. This is a great opportunity to be a part of great idea that will eventually be marketed, so it leaves room for great compensation. Anyone interested or that thinks they are qualified feel free to email me at fsgamers@gmail.com for any clarification needed.

Posted by Island1337 8 years ago


For Sale! Used medical equipment!

I have several pieces of used medical equipment for sale. These pieces would be EXCELENT for parts, projects, and experiments! If your interested please contact me...

Posted by damadtatter 7 years ago


Help needed circuit components with different voltage

Hey, I have a circuit with different voltage components. How would I make all the components run on one battery?

Posted by xpalix 2 years ago


PC mouse Mod

I have always wanted to see my electrical usage in real time. However, the watt meters available can not handle whole house wattage. I have an idea but lack the programing skills to pull it off. Use a modified usb mouse to read the dial as it spins and tabulate the totals. Because of the distance through the glass to the meter disk- a laser pointer may have to be used. Required to work: USB mouse Modified mouse driver- must not be recognized as a mouse in the PC customizable display output. Laser pointer? Anyway, if someone could help with the software that would be great- Thanks

Posted by ryancey777 10 years ago


Coil Gun / Grappling Hook.

Hey Everyone!  I am kind of an amatuer prop designer and I've recently been taken with pocket sized coil guns. My question is quite simple: I would like to know what disposable camera (brand) contains an LED indicator that flashes/turns on when the capacitor is fully charged? I've seen one such disposable camera used in this post: https://www.instructables.com/id/The-Coil-Gum/ I would love to know the exact brand or alternatives.  I would really appreciate any and all help and would love to post the resulting product. 

Posted by notnowmyheadhurts 4 years ago


Microwind Generator - any one up for the job?

Microwind Generator: 30X More Efficient and Cheaper!Popular Mechanics just held it's yearly Breakthrough Conference, and one of the winners was the Wind Belt an invention we've not seen before. The Wind Belthttp://digg.com/general_sciences/Microwind_Generator_30X_More_Efficient_and_CheaperSeems pretty simple!Anyone willing to make this?Things you might need... fabric, Neodymium magnets, and coilsYou can easily get good coils from led generators, even from the crappy 2 dollar ones. (As long as pumping it makes the led light on.)

Posted by akimbo m 10 years ago


Help choosing AC Power Adapter

I just purchased a Samsung DigiMax 301 Digital Camera from a friend and he did not have the AC Power Adapter for it. I've looked for a replacement on line but haven't been able to find one. There are all kinds of cheap priced AC Adapters though but I'm not sure which one will work for this camera. The original Adapter is (3.3V 2.0A). I found one at www.goldmine-elec-products.com, that's 3VDC 350ma, would this one work? I have no idea what the 350ma represents so I'm at a stand still on this. Also, would I have to match these specifications, (3.3V 2.0A), exactly? Or could this vary somewhat? Any help would be appreciated!!

Posted by mrreno 10 years ago


Last minute LED xmas lights running off a battery for a costume

First time posting here because I'm a novice and you folks seem to know your stuff! I'm about 48 hours from a big event (SantaCon NYC) in which I plan to have Christmas lights flashing on a costume. Problem is, I can't figure out how to get them to work. I have a Black & Decker "Pocket Power" brick which has an AC outlet on it, so that would have been perfect, except it doesn't hold a charge. The lights I have are on a 10 yard string of white LEDs. There's a hundred lights in series in total. They are controlled by a small circuit board in a plastic casing. The box says they use 55W and have a frequency of 60Hz. The end has a standard 110V two prong plug. So I need something that will power them for roughly 4-6 hours as they flash and twinkle. From a day's worth of research on the internet, I've found that the easiest way to do this would be connecting a battery pack to a power inverter which would change the DC juice from the battery to AC then allow me to plug the lights directly into an AC type outlet. I need to know what kind of battery I should get and how I can connect that battery to the inverter since most of them have a car cigarette lighter type of connection. Ideally this should all fit into a large pocket or fanny pack. Since it's getting down to the wire I'm starting to freak out a bit, and I'm a novice with electricity at best. Any advice would be greatly appreciated. Thanks in advance.

Posted by averbenko 6 years ago


Trying to make a table-mounted hot knife for rope cutting

I'm wanting to build a mountable hot knife for cutting climbing rope, similar to the ones at http://www.wirecare.com/hot-knives.asp and  http://www.rocknrescue.com/acatalog/Table-Hot-Knife.html, using a method similar to flywoodkb's https://www.instructables.com/id/Hot-wire-foam-cutter/. How should I go about keeping the "prongs" coming out of the box from electrocuting me/causing a short? I'm hoping to use a jigsaw blade for the blade part.Also, I have a handful of transformers from disassembling some electronics. Is there a way to tell what voltage and amperage they are?  Any help would be appreciated. Thanks!

Posted by The Insomniac 6 years ago


Electricians Qualifications and how we can get them

Electricians are those who concentrate in creating, working on and designing electrical systems. There are specific types of Electricians who concentrate on certain types of electronics work.

Posted by supreet 9 years ago


Looking for Electrical Engineer

The company I work for is looking for a full-time in-house creative EE. We design products for commercial and consumer applications.Here is our website:Griswold EngineeringWe need one innovative Electrical Engineer with experience programming electronics, as well as designing boards and circuits.Metro-Detroit area.Contact me if interested.

Posted by whiteoakart 8 years ago


Variable height desk: replace hand-crank with some kind of electrical motor

Hi, First time poster here, sorry if I'm misplacing this. I have near zero knowledge of engines, though I understand physics, at least from my civil engineering college years. I bought a variable height desk from IKEA (Skarsta model), which has a 12cm radius hand crank (see photos) that ends in a hexagon shape, h=6mm (so diameter around 6,93mm). This hand crank works fairly easily, needing little effort to crank the table up, with ~45kg of weight on it (it's supposed to go up to 50kg). So basically I was thinking if there was a easy, cheap and safe way of automating this with some sort of electric motor (I even looked up those Lego Technic motors!). Any suggestions? Thanks  

Posted by acn 2 years ago


Bicycle security!

Hey hey, so the other day i came up with a way that i thought might work well for a bicycle security...thing. anyways, since just about all bikes are made of metal, except the carbon ones, and metal conducts electricity, what if you had some way of making your bike, electrically charged? i guess (i dont know all the proper words heh) so if a person comes up to your bike and wants to take it, at some point in the process of taking your bike, he would come in contact with some metal part and get shocked. i thought if you made it properly, and made the shock strong enough, it would be a great way to keep your bike safe...cause i know if i went to take someones bike, and all of a sudden i get zapped all of a sudden every time i touch the bike, i would not want that bike! i figured you'd need some batteries with enough voltage to give him a good shock, enough to make him not want to take the bike, but not so much that you would kill him...that obviously would not be good.  but i'd imagine that more powerful batteries might be to big, and not fit anywhere on your bike. i thought that maybe you could hide everything in the seat tube after you take the seat post out, and maybe have a hidden switch somewhere on the bike so you could turn it off. im sure there's more issues i havent thought over, just an idea, and im far from an electrical expert, so i dont know how rubber shoes might ground the person, or how you would go about wiring it, and other stuff like that. i just wanted to see what some people here thought about it, and if it is even possible for me to do

Posted by sirshmoopy 7 years ago


Relay control board for ROV

     I'm working on a control system for my ROV and I'm not sure what to do. I plan on having 2 wires for power then a cat-5 cable for control of relays/ video. Does anyone have any ideas, schematics, or plans for a relay based control system... Inputs to controls: - 12v boat battery - 5 pairs of 22 AWG solid wire ROV side hardware: - 3  500GPH attwood bilge pumps modified with 60mm model boat propellers - 1 A/V camera - 2 3 LED lights (9v per 3)   If anyone needs any extra information... The ROV is based off of the SeaFox ROV from www.amazon.com/Build-Underwater-Robot-Other-Projects/dp/0968161006.  Please realize that it uses a near similar frame but different motors. Thanks to all who help. Citing and stuff: - ROV picture - homebuiltrovs.com

Posted by ry25920 8 years ago


Speaker + resistor = joy? - help a mom replace a $299 6.5" OEM auto speaker

Hi All, I come to my dear instructables seeking some basic understanding.  Let me just preface this by the fact that I have no problem getting dirty or cracking things open to try to understand them better- probably  better at taking them apart than putting them back together - but I try...(hubby kids that I always end up with spare parts too). this leads me to my current problem. The right front speaker in my 2001 sienna minvan decided to blow after much to much green day playing. Yesterday I just couldn't take the awful hissing anymore and popped off the panel to pull out the speaker. I'm kinda used to my old cars where I could pop down to best buy and pickup a new set. Not so with Toyota - OH NO they have special 2.2 Ohm speakers that are proprietary to Toyota. So I went to the dealsership and was told that a new right front JBL speaker replacement  (model 6689) was going to cost me $299. - you read that right $299 for ONE 6.5" door speaker. I found a website briefly outlining how to take a plain 4 ohm speaker, get a 1.8 Ohm resistor and be done with it.  -  http://oneilengineering.9f.com/photo5.html - So there are a few questions that I need answered by someone with experience. 1) Is it that simple?  - I may opt for decent replacements and I'll do both door ones so they match ... 2) I can't see from that fellows photos exactly how the resistor is attached - is it just soldered in place bridging the two end where the + /- leads are attached? any existing ibles with closeups? I couldn't find any. is a resistor directional? 3) I read somewhere that if I'm adding the resistor -  that heat will be generated from reducing the current - Is that true? if so - do I have to shield it somehow? Thank you for any help !!!

Posted by boarderline 7 years ago


Electric muscle stimulator

As part of my therapy for a painful shoulder dislocation I receive electrical muscle stimulation on my shoulder. I wonder if someone knows how to safely build a home made one.

Posted by blkhawk 5 years ago


Electrical Circuit Help

I would like to make the LEDs in the pre-wired controller in the first picture shown blink to music using the formula in the second.  I was thinking that I would need to leave the +/- coming out of the controller on different power than the LED strips this way you have constant power to the controller and therefore the remote to control the colors.  Anyone know how I can incorporate this?

Posted by chunkyblamm 6 years ago


What kind of relay do I need?

How do I find out which kind of relay switch I need for my alarm clock project (connecting an alarm clock to a motorized water gun). What information do you need? Thanks.

Posted by hthnc-student 5 years ago



What choice of motor for a robot

Hello, I'm making researches about electric motors, I know very little about them and it seems to be a vast world. I don't have any detailled project yet, but I'd like to make a small robot that would be capable to move, that implies using electric motors. Forums have many useful data about them, but what it lacks is precise user reviews: what type of motor would you use the most, and why? Is it simpler to use servomotors over DC, or brushless? Prics must be a criteria of choice, but can I found cheap motors with good performance? Thank you very much for your help

Posted by armandbon 1 year ago


problem|| need help with a speaker switch

Hi there ! The problem : I bought a speaker from the Internet to use in some gift . The plan was to get a speaker with a simple ON/OFF button, add the switch to the speaker extension, the speaker will be hidden but the switch added will be visible to the user . Anyway - what I got is a speaker with an electrical panel and an ON \ OFF button that turns the speaker on after ~ 3 seconds of pressing and holding the button. I do not have time to return or buy a new speaker so I wanted to know, if I added a simple ON \ OFF switch connecting the existing switch and the battery, I'll turn on the speaker and from that moment I will control it through the switch I added , will that give me the ability to control the speaker using the  switch I added? I'd be happy to know if it would work or not , and if not, tips on how to accomplish what I'm trying . Thank you !

Posted by razolution 4 years ago


Taser/Shock wand from Car Antenna

I have an old ball-tipped car antenna lying around and I want to turn it into a shock-wand. Any ideas on how to do so? It's still has the hex and threading at the base. Any help is welcome.

Posted by DSJesterXII 3 years ago


Grounding an Antenna

I'm thinkin of puttin up a high antenna. Due to my location with a mountain between me and broadcast towers, reception can be sketchy.  One concern is that of lightning strikes.  But if the antenna is grounded, wont that also ground out the microvoltage radio signals? How do I get microvolt signal without risk of megavolts burning the house down? I've done a wee little bit of google research, but haven't seen this question addressed.

Posted by Toga_Dan 4 years ago