Rex Johnston

You have reached a page belonging to Rex Johnston, of Christchurch, New Zealand.

My Links:

News	Slashdot	Freshmeat software	The Register	Pooper Scooper	Noooz	Some lunatic
Comics	Dilbert	Pearls before Swine	User Friendly	XKCD	Off The Mark
Words	Web Mail for my friends	Old Web Mail	Wordsmith	Audio Fruitcakes	The beautiful fairlady	MX-5 stuff
Local Info	Canterbury Telemetry	West Coast Telemetry	Nelson Telemetry	NZ Forecasts	NZRCA Website	NZ Kayak School
World Info	Google	Translations	Food Additives	Movie Database	Security Alerts	Desktop OS of choice
Others	TNT Audio	Mathworld	PHP Manual	Java API	PostgreSQL manuals	MySQL manuals

About the company

This company was originally set up to sell audio equipment (note the cool but ambiguous name). Turning a hobby into a business is often fraught with perils, and that plan went the way of the dodo. Now, I'm a contractor.

About me

My skills include a thorough understanding of UNIX and Linux in particular, setting up mail systems, DNS, web servers, routing, installation, configuration & administration, diagnostics, C, C++, PHP, Java, SQL (any flavour), shell scripting, in fact pretty much anything open source or UNIX.

I have a Masters Degree in Engineering (Mathematics) from Auckland University, and have worked as an "Operations Research Analyst". This includes expressing resource problems as a goal and a set of mathematic constraints, general engineering maths, and computer modelling. The latter was of particular interest to me, and this path led me to where I am today.

Some other skills of mine are designing and implementing analogue audio electronics. I've designed quite a few circuits and hopefully i will put some here soon. They'll include an 807 class A PP triode strapped amp with a constant current differential input, a differential input passive RIAA phono amp based on ICs (yes there are some good ones out there, AD797ANs in particular), high efficiency speaker design notes, perhaps some notes on power supply design, and maybe even some notes on clock phase noise and DAC current to voltage conversion.

Which is not to say i can't do digital...

My current interests are Whitewater Kayaking, which i've been doing for years and years, Mountain Biking (i've a nice superV), Snowboarding (a member of Fox Peak Ski Club), Skiing (lapsed), and surfing in one of my Kayaks (currently a Pyranha S8 225, InaZone 230, H2 255 or maybe even a slalom boat).

Or you can ring my cellphone 0274586761.

About this server.

This server runs Debian stable on a GNU/Linux kernel. I built this server out of some old bits lying around. It's never caused me problems and debian's stable branch is really stable, and their security updates are painless and quick (thanks to apt).

Sound Concepts Limited, New Zealand

***Sound Concepts Limited,* *New Zealand***