Category Archives: Electronics

Review: Mixcder MS301 Bluetooth V4.2 Wireless Headset with aptX

Whenever I’m out and about, especially when commuting on public transport, I’m often listening to music or watching a video on my phone. Having a set of headphones over my head is my way of making the commute more bearable … Continue reading

Posted in Audio, Electronics, Tablet | Tagged , , , , , , , , , , , | 5 Comments

Teardown: Motorola CableComm Series II Cable Access Unit (MM1012A)

I remember when I was very young, peering outside the window and seeing a bunch of workmen and trucks pull up in front of the house. In a short time, they rigged a steel wire between the power poles, then … Continue reading

Posted in Electronics, Radio, Salvage | Tagged , , , , | Leave a comment

Tested: “Compatible” Nikon EN-EL14 Batteries vs Genuine

Amongst the published articles on the site, it seems there is a fair amount of interest in the ones dealing with “compatible” and “fake” camera accessories, specifically Nikon EN-EL14 and EN-EL14a batteries. Having just recently returned from my first extended … Continue reading

Posted in Electronics, Photography | Tagged , , , , , , , , , | Leave a comment

Review: Nitecore NL1835 3500mAh 18650 Protected Li-Ion Battery

If you have a collection of flashlights, the temptation to buy higher capacity protected rechargeable Li-Ion batteries is quite strong. At times, the bundled cells aren’t the most capacious and might not give enough run-time to satisfy all needs, so … Continue reading

Posted in Electronics | Tagged , , , , | Leave a comment

Repair: Cooler Master Xcraft 3.5″ External HDD Enclosure PSU (SKA-0512-20B)

When I get a little time, I like to go through the “donation” pile and do some testing. As it turns out, I was gifted a set of four Cooler Master Xcraft External Hard Drive Enclosures along with matching power … Continue reading

Posted in Computing, Electronics | Tagged , , , , , | Leave a comment

Review: Uni-Trend UT210E Mini Clamp Meter

When diagnosing electronics, I often wished I could make current measurements without having to bridge out a component, or cut a wire. The inconvenience and potential safety issues are sometimes overwhelming and I just decide not to bother measuring the … Continue reading

Posted in Electronics | Tagged , , , | 1 Comment

WONTFIX Teardowns: iFlashDeviceHD, Varta SMP-75W PSU, Powermonkey Discovery Power Bank

If there’s one thing I always need to do, that is to clean up and get rid of the rubbish. Almost constantly, broken things are taken apart and examined in my room, with some of them requiring only minor surgery … Continue reading

Posted in Electronics, Power Bank | Tagged , , , , , | Leave a comment

Repair: Bauhn Remote Controlled Power Point & AKAI TV Remote Control

Returning from holidays, my Dad often has surprises for me. This time, it was a few items that needed attention – the first of which was three Bauhn Remote Controlled Power Point units with various faults, and the other was … Continue reading

Posted in Electronics, Salvage | Tagged , , | Leave a comment

Teardown: IKEA Sparsam 15W CFL & OSRAM Lightify CLA60 RGBW

It’s going to be a teardown double post, although not a happy one for me for a number of reasons. IKEA Sparsam 15W CFL This particular CFL is a young globe – only just installed prior to my holidays but … Continue reading

Posted in DIY, Electronics, Lighting | Tagged , , , , , | Leave a comment

Great AA Alkaline Battery Test – Addendum: 25mA Constant Current Tests

For those following along, they’d probably realize by now that I have left the country and are officially on holiday in the slightly-warmer-than-average-for-this-time-of-year Hong Kong. I had originally planned to make this post before I left home, but things got … Continue reading

Posted in Electronics | Tagged , , , , , , , , , | Leave a comment

Experiment: Sylvania Lynx CFTE 42W Cool White Deluxe CFL Tubes

Every so-often, I drop into my local thrift shop because I just so happen to be passing by on another errand and have some time to spare. It’s often a good experience to sift through the random items for sale, … Continue reading

Posted in Electronics, Lighting | Tagged , , , | 1 Comment

Repair: Click Surge-Protected & Sansai Switched 4-Outlet Powerboards

Powerboards are very simple and inexpensive devices used to convert one socket into multiple sockets on a (supposedly) temporary basis. Every house has a number of these devices, with basic devices simply bussing together the pins and more complex devices … Continue reading

Posted in Electronics | Tagged , , , , | 2 Comments

Teardown: RadioShack Amplified Telephone Earpiece (43-229)

After my experimentation in building a T-coil receiver on my own, it seemed that the unit did have some issues which I eventually corrected. While it seems the schematic may have been a victim of a transcription error, I thought … Continue reading

Posted in Audio, Electronics | Tagged , , , | 1 Comment

Teardown: FiiO E5 Headphone Amplifier

The FiiO E5 was a low-cost but decent performing compact headphone amplifier a few years back. The unit bore a vague resemblance to an iPod Shuffle clip-version, and was relatively compact with integrated rechargeable lithium-polymer battery. Since someone didn’t want … Continue reading

Posted in Audio, Electronics | Tagged , , | Leave a comment

Teardown: Swollen Xiaomi Redmi Note 2 BM45 Battery

While I was using my Xiaomi Redmi Note 2 the other day, I realized something strange was happening. It didn’t quite fit in its case as well as it used to, the screen felt a little like it was bowing, … Continue reading

Posted in Electronics, Telecommunications | Tagged , , , , | Leave a comment

RoadTest Review: Texas Instruments TPS56C215EVM-762 Evaluation Module

It’s new year’s eve and I’m busy working away. Why you ask? Well, I’ve been fortunate enough to be the recipient of another RoadTest item – this time, it’s a Texas Instruments Evaluation Module. The module in specific is the … Continue reading

Posted in Electronics | Tagged , , , , | Leave a comment

Salvage Season: Pt 5 – Fisher-Rosemount Systems Model 275 HART Communicator

“All this gear … and I still can’t get to your heart.” Welcome back to the salvage season series of posts. Lame joke aside, this post will be about a Fisher-Rosemount Systems Model 275 HART Communicator. So … what is … Continue reading

Posted in Electronics, Salvage | Tagged , , , , , , | Leave a comment

Salvage Season: Pt 4 – Lighting & AV Stuff

The salvages continue with lighting and AV related equipment. Of course, some of this isn’t that useful nowadays, but it’s more interesting from a “wish fulfillment” and philosophical perspective. Lighting (with Philosophical “Light-Bulb” Moments) It’s no big secret that LED … Continue reading

Posted in Electronics, Lighting, Salvage | Tagged , , , , , , | Leave a comment

Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 20 – Final)

It’s Boxing Day, and while a lot of people are outside partaking in the shopping frenzy of underwhelming discounts, I’m firmly sitting at home plodding away at some data analysis to deliver this last part of the power bank endurance … Continue reading

Posted in Electronics, Power Bank | Tagged , , , | Leave a comment

Great AA Alkaline Battery Test – Pt 4: Cell Physical Characteristics

After the rather interesting results in the previous section, I was curious as to who actually manufactured the cells for the lesser known brands, and whether that could be determined just by examining the physical characteristics of the cells. Given … Continue reading

Posted in Electronics | Tagged , , , , , , , , , | 2 Comments

Great AA Alkaline Battery Test – Pt 3: The Results

If you’ve made it this far, congratulations, you’ve earned the right to read the results! If not, you could be doing yourself a big disservice and not understanding the true intricacies that underlie the subject of battery testing and the … Continue reading

Posted in Electronics | Tagged , , , , , , , , , | Leave a comment

Great AA Alkaline Battery Test – Pt 2: The Contenders

Welcome to the second installment in the Great AA Alkaline Battery Test series, where the contenders for testing are presented. This post is one of the most image heavy posts I have ever delivered, so apologies if my webserver falls … Continue reading

Posted in Electronics | Tagged , , , , , , , , , | Leave a comment

Great AA Alkaline Battery Test – Pt 1: Battery Testing Fundamentals

Regular readers would probably know that I have a love of batteries, and their associated test equipment. Maybe it was the fact that they were expensive, but pervasive, and my enjoyment as a child relied quite heavily on batteries to … Continue reading

Posted in Electronics | Tagged , , , , , , , , , | Leave a comment

RoadTest Review: B&K Precision Model 8600 DC Electronic Load

It’s a rather late night for me – as it has been for the past few weeks. But that’s not without reason, as a rather useful piece of equipment headed my way and my review was due. I had a … Continue reading

Posted in Electronics | Tagged , , , , | Leave a comment

Power Bank Endurance Test – Hillo Power Jin Gangxia (Part 19)

This is one of those ongoing experiments which just seems to keep dragging on and on. Initially, I thought I’d torture a relatively unknown power bank by cycling it over and over on the test rig, expecting to see it … Continue reading

Posted in Electronics, Power Bank | Tagged , , , | 5 Comments

Review: Raspberry Pi 3 – More Pi, No Cables Attached?

It’s been a while since I checked out the Raspberry Pi, as my fleet of original Raspberry Pi Model B, B+ and Pi 2 Model B’s have all been working well doing their little jobs around the house. I haven’t … Continue reading

Posted in Computing, Electronics, Raspberry Pi | Tagged , , , , , , , , , | 4 Comments

Hack: Customize the LED Shake-Stick Images

As I managed to construct the LED shake-stick kit just yesterday evening, I wasn’t entirely satisfied with its operation. For one, the images weren’t particularly inspiring. I mentioned that it should be possible to replace the images in the ROM … Continue reading

Posted in Computing, Electronics | Tagged , , , , , , | Leave a comment

Project: AT89S52-based LED Shake-Stick Kit

Just recently, I built an AT89S52-based LED Heart and an LED Clock Kit, so I wondered just what else is out there that is AT89S52-based. Searching around on eBay led me to a “shake stick” kit for AU$4.37. It looked … Continue reading

Posted in Electronics | Tagged , , , , , | 3 Comments

Project: AT89S52+DS1302-based LED Clock Kit (EC1204B-Equivalent)

Since I started along the line of garish LED-adorned kits, I thought I’d order a few other kits built around the AT89S52. In this case, it was a clock based around the AT89S52 80C51 microcontroller and a DS1302 real-time clock. … Continue reading

Posted in Electronics | Tagged , , , , , | 3 Comments

Project: AT89S52-based Multi-Coloured LED Heart Kit

As my radio kit-building adventures have reached the “bottom” of the eBay well, with most of the kits available being built, I decided to branch out into other “low cost” kits to see what they are like. Most of the … Continue reading

Posted in Electronics | Tagged , , , , , | 5 Comments