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The following lists link to engineering articles, papers and product reviews that I have written. Click the title to open. Electronics has now been shifted to the Axino Test Bench page.


Newer than a couple of years.

Date Title Description
27 Feb 2019 Costs of owning a new car Costs of owning a new car with actual figures
3 July 2017 The 'Realistic' SA150 amplifier A few details about the Realistic SA150 nano-stereo amp from the 1990's era
2 July 2017 A tale of three vacuum cleaners Important measurements for domestic vacuum cleaners
20 Apr 2017 Light flicker from LED lighting Looking at the IEEE1789-2015 light flicker standard


Articles written from two to five years ago.

Date Title Description
16 Sept 2016 The Axino mini-FM transmitter A mini FM transmitter: One way to get a watt
4 Aug 2016 Jaycar XC4438 module assessment Jaycar XC4438: Some weaknesses in design
27 November 2015 Revisiting audio loudness on Freeview Review of loudness on Freeview (N.Z) in 2015
27 Nov 2015 Jaycar XC4514 module problem Jaycar XC4514 : The step-up voltage converter that wasn't.
6 July 2015 Replacing incandescent downlights with LED LED vs Incandescent: Details, prices, payback period.
3 July 2015 You thought there were a lot of ads... Measurements of how much ad time on Freeview
15 Jan 2015 Experimental low power FM transmitter Description and componentry of my experimental FM transmitter
5 Jan 2015 Syba CM119 USB to stereo adaptor A brief look at performance of the Syba CM119 adaptor.
4 Jan 2015 D2A digital audio to stereo converter A brief look at what it took to make the D2A stereo converter unit work.
27 Oct 2014 So you want to set up a LPFM station in New Zealand? A guide to setting up a low power FM (LPFM) station in New Zealand


These were written six to nine years back

Date Title Description
25 September 2013 Re-purpose the old VHF TV antenna for FM Convert your old TV antenna to FM
8 September 2013 THD+N measurement Defending the usefulness of THD+N measurements
8 August 2013 Tests of TV and satellite RF components Measured performance of selected TV and satellite hardware components used in domestic and commercial installations.
20 Nov 2012 Loudness tests of Russell Hobbs kettles Is the Whisper model kettle really any quieter?
16 Nov 2012 Installing a Superlux SD125F CFL downlight Superlux SD125F CFL: Comparing light output and aesthetics to the old incandescent downlight
26 Nov 2012 How much hot water does a shower use? The flow of a typical mains pressure shower is measured and the costs of running the shower are calculated. Some guidelines to keep costs down are discussed.
5 September 2012 Vehicle Noise Discussion around vehicle noise plus measurement techniques including a roadside recording
3 June 2012 Replacing the outdoor unit of a house alarm Rust never sleeps. Almost as true as death and taxes.
27 February 2012 Replacing a faulty insinkerator Experience of replacing a faulty insinkerator
28 April 2012 New remote control for garage door opener Coping with obselete or faulty garage remote
7 Sept 2012 Powerware PW5115 UPS Short summary and some tests of this Eaton UPS...UPDATED MAR 2017
21 June 2012 Retiring the old Thorn FM64A stereo Thorn FM64A stereo: Replaced with a Denon AVR-1912
23 December 2011 Introduction to DVB-T2 and SKY Igloo SKY and TVNZ will commence their 'IGLOO' service in 2012 using the latest DVB-T2 standard. "Igloo" closed in 2017 however the DVB-T2 technology is current and many networks around the world are converting from plain DVB-T.
14 August 2011 Setup dish with spectrum analyser A technical brief describing how to set up a satellite dish using a spectrum analyser
31 May 2011 Uniden XDECT R055 phone Mini review of Uniden XDECT R055 cordless phone
15 April 2011 Power quality of small appliances Some test results and discussion of the mains harmonics created in small appliances
3 January 2011 Radiation from flat panel TV's Short article about radiation fields from modern flat panel TV's compared to the old CRT style sets.
16 August 2010 Digital TV - how DVB-T works Why DVBT uses less spectrum resource than analogue TV and just how does it work anyway
9 August 2010 Bandwidth required for broadcast FM Some performance issues that determine FM stereo quality.


This section contains still relevant articles written over nine years ago

Date Title Description
25 Mar 2010 Power consumption table Measured power use and annual costs for selected appliances.
2 Oct 2009 Ads on TV are louder than programmes Ads on TV are louder: Yes it has always been true. This article proves it.
28 Sept 2009 The myth of loudspeaker bi-wiring Discussion of bi-wiring and demonstration of minimal impedance differences
22 Sept 2009 More CFL experiments Tests of light output and flicker. (In response to D.Helmore)
7 Sept 2009 HDMI cables: No need to pay exorbitant prices Tests performed on HDMI cables which show even cheap generics work at over 20 metres
22 June 2009 Update to CFL article Further thoughts about CFL's following Consumer NZ test