Instructables: exploring - stepbystep - technology - tools - cheap - popular http://www.instructables.com Mon, 8 Feb 2016 00:30:03 PST BLOX v1.01 cheap DIY electronic pH meter http://www.instructables.com/id/cheap-DIY-electronic-pH-meter/
cheap DIY electronic pH meter - More DIY How To Projects]]> http://cdn.instructables.com/F4Z/8F0D/HPAMYJSV/F4Z8F0DHPAMYJSV.SQUARE2.jpg http://cdn.instructables.com/F4Z/8F0D/HPAMYJSV/F4Z8F0DHPAMYJSV.SQUARE.jpg http://cdn.instructables.com/F4Z/8F0D/HPAMYJSV/F4Z8F0DHPAMYJSV.SMALL.jpg Nikita98 an electronic pH meter is made out of 3 main components; the pH probe, the voltmeter and the circuit. the pH probe The pH probe measures pH as the activity of hydrogen cations surrounding a thin-walled glass bulb at its tip. we will be making this in two parts. glass pH probe materials: 1.a smal...
By: Nikita98

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Mon, 16 Dec 2013 19:05:59 PST
Convert A Computer Power supply to a Variable Bench Top Lab Power Supply http://www.instructables.com/id/Convert-A-Computer-Power-supply-to-a-Bench-Top-Lab/
Convert A Computer Power supply to a Variable Bench Top Lab Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/F2X/ND8P/FNZAH3MN/F2XND8PFNZAH3MN.SQUARE2.jpg http://cdn.instructables.com/F2X/ND8P/FNZAH3MN/F2XND8PFNZAH3MN.SQUARE.jpg http://cdn.instructables.com/F2X/ND8P/FNZAH3MN/F2XND8PFNZAH3MN.SMALL.jpg prodlad Prices Today for a lab power supply well exceed $180. But it turns out a obsolete computer power supply is perfect for the job instead. With these costing you only $25 and having short circuit protection, thermal protection, Overload protection and varied output voltages of 3v, 5v and 12v but we wil...
By: prodlad

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Wed, 26 Nov 2008 10:12:48 PST
"Ruth", the $5 vacuum former http://www.instructables.com/id/Ruth-the-5-vacuum-former/
"Ruth", the $5 vacuum former - More DIY How To Projects]]> http://cdn.instructables.com/FEU/QVVA/H2CE7C3P/FEUQVVAH2CE7C3P.SQUARE2.jpg http://cdn.instructables.com/FEU/QVVA/H2CE7C3P/FEUQVVAH2CE7C3P.SQUARE.jpg http://cdn.instructables.com/FEU/QVVA/H2CE7C3P/FEUQVVAH2CE7C3P.SMALL.jpg jduffy54 This project is a basic vacuum former from parts totaling under $5, assuming you already have a shop vac or floor vacuum and a toaster.  All the parts are avaliable from American Science and Surplus.  This specific model has a ~5.5"x~5.5" area to form to.  It takes a standard vacuum hose, and is stu...
By: jduffy54

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Thu, 24 May 2012 19:24:26 PDT
Recycled HDD Rotary Sander for $5 http://www.instructables.com/id/Recycled-HDD-Rotary-Sander-for-5/
Recycled HDD Rotary Sander for $5 - More DIY How To Projects]]> http://cdn.instructables.com/FKJ/CT4Y/G6MPQJJ8/FKJCT4YG6MPQJJ8.SQUARE2.jpg http://cdn.instructables.com/FKJ/CT4Y/G6MPQJJ8/FKJCT4YG6MPQJJ8.SQUARE.jpg http://cdn.instructables.com/FKJ/CT4Y/G6MPQJJ8/FKJCT4YG6MPQJJ8.SMALL.jpg mhkabir http://www.instructables.com/id/Recycled-HDD-Powertool-Disk-of-Prometheus/ The new instructable is here. Its ia newer, improved and hugely better version and adresses the disadvantages of this design.  If you are a computer guy, you must have lots of Hard Disk drives piling up. If you want to use t...
By: mhkabir

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Tue, 23 Mar 2010 02:16:43 PDT