Blog

An Attempt at Building a DIY Spring Reverb Tank Using Electromagentism

tariq.ahmad — Fri, 19 Nov 2021 23:16:00 GMT

www.youtube.com/watch Originally Posted by aptbartmess I love the sound of the old mechanical spring reverbs found in Hammond organs and Fender amps. I've been wanting to make my own and when this month's science contest was announced I decid...(read more)

Smarthab: Door Strikes 2

phoenixcomm — Wed, 24 Apr 2019 08:20:27 GMT

Good Electric Strikes are not cheap. Yes, you can buy one for 30 - 50 dollars but in the end, you might not like it. Remember here is definitely: You Get What You Paid For It. So think twice before you drop your bucks on some cheap imported crap! ...(read more)

3000A clamp table and amplifier update #2

three-phase — Mon, 15 Apr 2019 20:11:46 GMT

I have done some more work today on the current amplifier and found that I did not have the input turned up to a high enough voltage to obtain the full 1A output, so I have now repeated the test and monitored the heat output from the amplifier. ...(read more)

Measuring Electromagnets - the Magneto Mutant Magnetic Measurement Meter (MMMMM-1000)

shabaz — Mon, 15 Apr 2019 16:03:33 GMT

IntroductionWhen making electromagnets, it is difficult to know for sure what kind of magnetic flux density has been achieved. This is because it depends a lot on practical construction factors, where on the electromagnet it is measured, and the core...(read more)

3000A clamp table and amplifier update #1

three-phase — Sun, 14 Apr 2019 20:56:17 GMT

I haven't had much chance to work on the clamp table this week so it isn't quite complete, the majority of the time has been spend building and testing the current amplifier after the PCB had arrived. For the clamp table, I have cu...(read more)

Easy Peasy Non-Contact Electricity Detector (Not a Metal Detector)

mahmood.hassan — Sun, 14 Apr 2019 16:40:00 GMT

Before building this device I have tried lots of different design but in every circuit there were some issues, either it was also a metal detector or detect human as AC voltage source. I even built a device using instrumentation amplifier, 2nd order...(read more)

One String Electric Guitar #6 : Final Assembly and Working Guitar

dubbie — Thu, 11 Apr 2019 13:28:00 GMT

After all the painting and finishing off the One String Electric Guitar has been finished. I re-installed the pickup and wired it directly into the headphones amplifier as this enabled me to create an untethered system that I could then plug d...(read more)

One String Electric Guitar #5 : Assembling the Final Guitar Body

dubbie — Mon, 08 Apr 2019 12:34:00 GMT

Once the final guitar body had been shaped it was time to paint it. I decided to follow a painting strategy of undercoat then top coat of spray paint. The undercoat was just a wood primer and undercoat combined, which I sanded down after the first c...(read more)

The KLINGMAGON Subspace Probe

dougw — Mon, 08 Apr 2019 02:13:00 GMT

No wires, no batteries, no solar panels, no screws, no glue and no suction cups, but a Klingmagon Subspace Probe can scavenge power to operate and cling to a vertical window without supports. I have been planning to build an outdoor digital thermome...(read more)

3000A current clamp table and amplifier

three-phase — Sun, 07 Apr 2019 19:39:12 GMT

ElectromagnetismEnter Your Electronics & Design Project for a chance to win a $100 Shopping Cart!Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll IntroductionFor my entry in the electromagnetism contest, I decide...(read more)

One String Electric Guitar #4 : Making the Final Guitar Body

dubbie — Thu, 28 Mar 2019 14:01:52 GMT

Having created the prototype one string electric guitar body and pickup I wanted to be able to hear the sounds it makes. I don't have a guitar amplifier so I decided to use an ordinary music amplifier instead but this needs a pre-amp to make it w...(read more)

One String Electric Guitar #3 : Completing the Prototype

dubbie — Thu, 21 Mar 2019 11:11:54 GMT

As the prototype body for the one string electric guitar has been completed the next step is to make the pickup coil. I have previously made a 3D printed bobbin to wind the coil on so all I need now is to select the wire to be used and wind it. I hav...(read more)

One String Electric Guitar # 2 : Building the Guitar

dubbie — Thu, 14 Mar 2019 11:46:25 GMT

I thought I would start the building of the guitar body with the pickup itself. As I have a magnet which I think is suitable I decided to 3D print a bobbin that fitted it to hold the winding coil. The magnet is 8 mm in diameter and 15 mm in length so...(read more)

One String Electric guitar #1 : Getting Started

dubbie — Mon, 11 Mar 2019 12:52:46 GMT

I saw the Project14 monthly topic of Electromagnetism and thought about it for a bit and couldn't think of anything that I could do - there didn't seem anyway of involving mobile robots in this, so I had decided not to participate. Some time ...(read more)

Onoring Alessandro Volta: How to make a Salt Water Battery

toolkitman — Sat, 23 Feb 2019 23:16:47 GMT

Here is more a tutorial to make a battery i remember when i was young to have made one of this have a look at the link, it's not mine (wiki source) but i know how to make it! https://www.wikihow.com/Make-a-Homemade-Battery Here is shown how...(read more)