Archive of circuits

Using the inductor tester Thumbnail

Using the inductor tester

Posted by ian.rees on May 21, 2016 in Projects tagged with , , , , , , ,

A few weeks back, we had a talk on KiCad (presentation available at ) where we ordered some PCBs to make an inductor tester (Henryometer?) from dirty PCBs. Those boards came in this week, and a few folks have already put theirs together. This post aims to be a quick guide to the usage of the tester; if you'd like to build one yourself just let Ian know, parts cost is $15. You'll need an oscilloscope and a current-limited DC power supply to make use of it. Connections between the tester and oscilloscope are made via standard BNC coaxial cables (ava

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What’s been happening at the makerspace? Thumbnail

What’s been happening at the makerspace?

Posted by Blair McBride on April 04, 2012 in News tagged with , , ,

After a hiatus over the Christmas/New Years break and a slow start to the year, the Makerspace has been bustling with activity recently. Brian Paavo talked about the underwater scanner project the Makerspace is collectively working on, and work has been progressing on that (there will be a post about that soon). Paul Campbell held a soldering workshop, and about a dozen people made LED sculptures. One of the highlights on Saturday was William George's project of converting  chrome-plated toaster into an audio CD player. And when you come into the Makerspace now, you'll notice that the room ha

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Talk: Beginning electronics courses

Posted by Paul Campbell on August 19, 2011 in Talks tagged with ,

I've started giving a series of basic electronics courses at Makerspace - these are aimed at everyone including complete beginners - I'm avoiding maths as much as possible, the idea is to get an understanding of what's going on in a circuit without getting bogged down in the details - your goal should be to be able to look at a schematic, ask yourself  "what's that thing for?" and be able to make a reasonable guess I'm making heavy use of the excellent circuit simulations at - your browser will need java enabled to use them. The first session

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