Tag Archives: electronics

Tech Flashback: Dick Smith’s Funway 2 Project 7: Pocket Transistor Radio

Since the positive reception to my posts about Dick Smith’s Fun Way into Electronics book series (Part 1, Part 2 & 3), I’ve always been meaning to put up more posts about the series and its projects. It was amazing … Continue reading

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Modification: Manson HCS-3102 Power Supply Output On/Off Switch

Three years ago, I purchased a pair of Manson HCS-3102 programmable switch-mode power supplies. These were not particularly expensive supplies, and judging by some of the noises they made and the granularity of the programming and read-back, weren’t particularly high … Continue reading

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Friday 13th November 2015: The Night the Power Went Out

Friday the 13th, commonly known as Black Friday, is believed to bring bad luck. While I’m not a superstitious person, and I don’t believe in a fear of the number 13, it seems that something was special about this Friday. … Continue reading

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Project: Raspberry Pi Door Sign in Under an Hour!

A while back, I wasn’t happy that I was constantly getting interrupted while working or sleeping in my room, so I decided to solve that. Grabbing some parts I had lying about, I decided to make a wireless network-connected door … Continue reading

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Teardown & Test: Nelson Cougar 60 Electronic Downlight Transformer

You never quite go to Bunnings without leaving with quite a few items. While walking around the aisles, the Nelson Cougar 60 caught my eye. This is an electronic transformer designed for use with halogen downlights up to 60 watts. … Continue reading

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Teardown: IKEA Koppla 6-outlet Powerboard

My trip to IKEA netted me many interesting items, which I am slowly sifting through. IKEA is not only about furniture – there is some lighting and electrical as well that interests me. In general, powerboards are pretty simple household … Continue reading

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Project: A Fluorescent Starter Based Glow Lamp

This week marks the official opening of the Vivid Sydney outdoor light show for 2015. Sadly, the weather is absolutely horrible today, with scattered heavy showers all over Sydney meaning it’s another “stay at home” day. This got me thinking … Continue reading

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Quick Review: Freetronics LeoStick (XC4266) Arduino Compatible Board

Just this week, I was gifted a Freetronics LeoStick from a colleague at the university, so I decided to take a look at it over the weekend. This particular unit seems to be distributed by Jaycar under catalogue number XC4266 … Continue reading

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Teardown: A Dying “X-Glow”-branded Cree XLamp Torch

A few years ago, while shopping around at a local Jaycar, I got a bit distracted and did something bad. I made an impulse buy. I saw a nice LED torch sitting on the shelf, on special, with a very … Continue reading

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Review: Agilent U1241B 4-Digit Handheld DMM & Accessories

Early in December, I made a trip to element14 to treat myself to an early Christmas present. Having posted about it on my element14 blog, inviting members to take a guess at what the surprise would be, I was surprised … Continue reading

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Project: Audio Induction Loop Receiver (Part 3: More Sydney Trains)

In the previous part, I had began a small project to collect samples of digital voice announcements from Sydney Trains Millenium and Warratah sets. In fact, I had continued to collect more samples just out of my own interest, but … Continue reading

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Teardown, Repair: Varta Power Play (Ready2Use) 15 Minute Charger (Type 57275)

There was once a time when most portable electronic devices used AA or AAA batteries. Many users would opt to use Carbon Zinc or Alkaline disposable cells with these products, which proved to be costly financially and environmentally. An alternative … Continue reading

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Investigation: How Accurate is that 3.5 digit Multimeter?

A few weeks ago, one of the commenters made a suggestion that I test some more inexpensive test equipment, after my stint at reverse engineering USB charger doctors/detectors and determining their accuracy. While I won’t go chasing low end test … Continue reading

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Tech Flashback: Dick Smith’s Fun Way into Electronics Vol. 2 and 3

Continuing on from the previous part, possible due to the generosity of an OCAU member, lets continue our nostalgic trip down memory lane by looking at Dick Smith’s Fun Way into Electronics Volume 2 and 3. Dick Smith’s Fun Way … Continue reading

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Tech Flashback: Dick Smith’s Fun Way into Electronics Vol. 1

Regular readers will no doubt already know my passion for Dick Smith’s Fun Way into Electronics series, as it was one of the big reasons for my interest and continuing self-education in electronics. This introductory series of projects were designed … Continue reading

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Testing: Charger Doctor and USB Detector Accuracy

Ever since I got my Charger Doctors/USB detector, I have been fascinated with how they have been able to provide such a useful tool for a low price. After taking each of them apart and analyzing their circuitry and connections, … Continue reading

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Project: Audio Induction Loop Receiver (Part 2: Sydney Trains DVA Collection)

In the last part, I decided to design and build myself an audio induction loop receiver. Part of this was just out of pure curiosity as to what sort of signals exist in the electromagnetic spectrum at audio frequencies, but … Continue reading

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Project: Audio Induction Loop Receiver (Part 1)

In daily life, you might have come across signs like this, with a picture of an ear, and the letter T on them. Maybe you didn’t think any more about them, as an average person with perfectly good hearing – … Continue reading

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Visited: ElectroneX 2014

ElectroneX is the premier trade show for electronics design and assembly in Australia, and is held in Sydney and Melbourne in alternating years. This year, they were back in Sydney at the Australian Technology Park at Redfern, making it easy … Continue reading

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Project: Analyze Mains Power Flicker Issue & Ripple Signalling

Over the past few weeks, we had experienced a few power outages and it came to my attention that the CFL in my room might be about to go. It had a characteristic “brightness” variation which seemed to pulsate from … Continue reading

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My Last DSE Kit: The Story of How I Got into Electronics

Since I’ve started the blog, the majority of my posts have always focused on the technical aspects of different products and items. But increasingly, I feel, it’s also valuable to provide a personal perspective to the posts, so I have … Continue reading

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Teardown: Sunshine T5 S13582W 13W Ballast

Part of the whole clean-up business also means that I get rid of some of my old junk. Many years ago (2006 actually), on a holiday to Hong Kong, I purchased a set of four Sunshine branded T5 S13582W 13W … Continue reading

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Setting off a Flashgun with an Arduino

So it might not be obvious why one might want to do such a thing – but it could come in useful. I have a Yongnuo YN560 “manual” flash (no TTL metering, so one had to set the flash power … Continue reading

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