Instructables: exploring - technology - watt Tue, 4 Aug 2015 15:21:14 PDT BLOX v1.01 VU Meter Speakers
VU Meter Speakers - More DIY How To Projects]]> IamTeknik A VU meter is a standard measuring instrument which measures volume in audio equipment. If you open up your recording devices on Windows, you can see a digital Volume Unit (VU) meter which shows the audio level. You get analog and digital displays and each level is typically marked off with a dB val...
By: IamTeknik

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Sat, 18 Jul 2015 20:34:42 PDT
DIY Super Powerful LED Torch
DIY Super Powerful LED Torch - More DIY How To Projects]]> Mr AbAk Hello Guys We are back on our 8th Instructable on this site...Recently our town was suffering from a power cut and me and my brother found that our old torch was broken and was not very powerful one...So we decided to make one for us...We searched the whole instructables site for a DIY powerful torc...
By: Mr AbAk

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Sun, 28 Dec 2014 10:18:33 PST
DIY Super Bright LED Laptop Keyboard Light (1W high Power)
DIY Super Bright LED Laptop Keyboard Light (1W high Power) - More DIY How To Projects]]> bhvm Eyes are Precious,Today we will Be Modifying a Cheap keyboard Light into the Ultimate,Brightest, High power Light to Protect them. As Some of you may Know, I have already Modified an Ebay/ Chinese Laptop Keyboard light with 7.62mm Superflux LEDs sometime Back. The guide for the same is here-http://w...
By: bhvm

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Mon, 17 Nov 2014 08:20:50 PST
Mechanical iris v2.0
Mechanical iris v2.0 - More DIY How To Projects]]> NTT Before anything else, I would like to say that this Instructable is based on and inspired by carlbass and his Mechanical iris. Author: Instructable: Inspired by his work I quickly put a piece of...

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Sun, 9 Mar 2014 07:43:49 PDT
10W led security light hack
10W led security light hack - More DIY How To Projects]]> dtidbeaux Well i guess I'll start by saying that this is my first able, so be gentle (; lol. I always seemed to have a problem with my halogen security lights burning out. I wanted a simple, cheap, permanent solution. Led's seemed to be the way to go. Im fairly new to 120V electronics and am learning quickly,...
By: dtidbeaux

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Fri, 14 Feb 2014 20:59:35 PST
ARDUINO ENERGY METER - More DIY How To Projects]]> deba168 I belong to a village of Odisha, India where frequent power cut is very common. It hampers the life of every one. During my childhood days continuing studies after dusk was a real challenge. Due to this problem I designed a solar system for my home on a experimental basis. I used a solar...
By: deba168

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Fri, 17 Jan 2014 05:44:50 PST
Thermoelectric Fan Powered by a Candle Joohansson A Thermoelectric generator powered by a tealight. It started as an experiment of how much power I could get from one candle. But I liked the idea and it worked really well so I built this electric-mechanical ornament. I did not use a high temperature TEG-module, but instead a cheap TEC-module. That ...
By: Joohansson

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Sat, 30 Mar 2013 03:04:10 PDT
Gas Can Amplifier praznav This is a gas can amplifier I built in school for my electronics class. It is a 20 watt bridge type amplifier. The gas can is simply it's case and does not hold any gas.  I thought it was cool, but apparently its a little weird to walk around carrying a gas can :P I've uploaded a few pictures and a ...
By: praznav

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Fri, 14 Dec 2012 19:26:51 PST
High Powered LED Solar Lighting System
High Powered LED Solar Lighting System - More DIY How To Projects]]> JoshuaZimmerman While I love making proof of concept solar projects, or solar projects that I might use if the world comes to an end, I prefer to make solar projects that are useful in my day to day life. (I love my solar FM radio, but I've never had the need to use it in an emergency situation) This past summer ...
By: JoshuaZimmerman

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Wed, 5 Sep 2012 22:28:30 PDT
Simple powerful 5 watts amplifier and telephone line bug Nick_Zouein This is a general purpose amplifier that has a wide variety of general uses like circuit testing, phone line tabbing .. etc.  The circuit design is so effective that I'm producing it by the hundreds for local technical schools.
By: Nick_Zouein

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Fri, 6 Jul 2012 00:23:14 PDT
DIY Amp / Watt Hour Volt Meter - Arduino
DIY Amp / Watt Hour Volt Meter - Arduino - More DIY How To Projects]]> sspence Major corrections and additions made 9/9/2014 See the new and improved 2015 version at my off-grid Ham Radio and Solar projects, I needed a way to measure volts, amps, watts, amp hours and watt hours. There's a couple of commercial products that can do this, but not...
By: sspence

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Wed, 9 May 2012 16:48:34 PDT
Make a battery powered soldering iron! In an Altoids tin?
Make a battery powered soldering iron! In an Altoids tin? - More DIY How To Projects]]> Adam Manick With this instructable, I am going to show you how to make your very own soldering iron! This entire iron can be built for less than fifteen dollars. There is no catch, and this is just as good at soldering as almost any other inexpensive iron on the market. This iron has a maximum temperature of 10...
By: Adam Manick

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Sat, 14 Apr 2012 14:56:09 PDT
How to Repair a Cracked Speaker Cone.
How to Repair a Cracked Speaker Cone. - More DIY How To Projects]]> coolpizzadude I got inspired to make this indestructible a couple of days ago when I stumbled across a set of really nice set of audiobahn subwoofers at a yard sale. The only problem was that the speaker cones were badly cracked from the previous owner pushing to many watts through them.  I bought them, took them...
By: coolpizzadude

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Fri, 16 Sep 2011 04:22:44 PDT
Build Laser Cutter fishy8082 This is a very fun project if you have a lot of time and love to build everything rather than just going to the store and buying it.  This guide will show you how to build a CO2 laser cutter with a cutting bed size of 38X17X10.  It costs about 1200-1500 to make at the time of writing. Video of ...
By: fishy8082

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Sat, 21 May 2011 22:56:35 PDT
24 Channel USB Connected LED Controller, upto 1A per Channel
24 Channel USB Connected LED Controller, upto 1A per Channel - More DIY How To Projects]]> ChromationSystems This device is designed to be a versatile high-current LED controller, with the ability to sink or/and source currents up to 1A per channel with dissipation of up to 2.5w per channel. The various jumpers and transistor placement allow the device to control many different types of LED configurations...
By: ChromationSystems

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Sat, 12 Feb 2011 16:55:50 PST
ZVS Flyback Driver - Video Plasmana It has been a long time since I have posted anything, lol. I have recently got more sealed lead acid batteries so I can now power my ZVS flyback driver up to 36 volts! I will try find some time to make an instructable about making one of those beast, at the moment, I can show the vid of it working....
By: Plasmana

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Sat, 29 May 2010 15:40:40 PDT
Measuring system efficiency of using backup batteries from grid power nedfunnell For my thermodynamics project, I set the depicted components up to measure the total efficiency of charging batteries from the grid then discharging them through an inverter- in my case, 110v-24v-12v(wiring change)-110v-load. This is a small-scale model of a system that would serve a household where...
By: nedfunnell

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Tue, 24 Nov 2009 21:55:45 PST
Build an Analog Electricity Usage Meter
Build an Analog Electricity Usage Meter - More DIY How To Projects]]> pribich I have used a Kill A Watt (  electric meter for a while and I decided to build  an analog one. This project went from being simple, with a single panel ammeter and an outlet, to full scale with three meters, a lamp socket, binding p...
By: pribich

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Fri, 9 Oct 2009 10:29:09 PDT
SPKR MiK: How to make a microphone from a speaker.
SPKR MiK: How to make a microphone from a speaker. - More DIY How To Projects]]> Aud1073cH How to make an inexpensive microphone capable of picking up low frequencies that doubles as a speaker and direct box.The large diaphragm of this microphone will pick up more of the low frequencies when recording a kick drum or bass guitar.Sound recording engineers have been using this trick for year...
By: Aud1073cH

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Fri, 26 Oct 2007 09:20:50 PDT