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Astonished? I was not!

Warning. This post contains ranting and incompletely-redacted profanities. Read at your own risk.

Candidate for Prize For The Most Useless Product Of 2010

Astonished I wasn’t. Despite a heavy-weight list of powerful agents contained in it’s formulation (non-ionic surfactants and perfume), this product failed to give satisfactory results in tests on my sink – in fact [...]

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Who We Are

This article contains material that some readers may find offensive and/or challenging. If you are easily offended, then please do not read on.
By the very nature of this article I have to respect the feelings of those I have known, and those that know me, so this is by no means a full-on confessional. Let’s [...]

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16-bit SPI comms source-code for PIC18F4620 & VLSI VS1103b (Sparkfun BOB)

I’m pleased to report that I’ve successfully implemented 16-bit SPI communication between my Chordar project controller, a PIC18F4620, and the VLSI VS1103b MIDI Synth chip on the Sparkfun VS1103 BOB.
The hardware for this is as shown in the previous post. The source-code, and a short discussion of it, can be found on my picproject.info site [...]

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Sparkfun VS1103 BOB BOB!

No it isn’t a mistake, it’s the breakout-board I would like to have seen made available off the shelf from Sparkfun. Those familiar with these pages will note that I documented how to connect up the VS1103 BOB from Sparkfun on a breadboard a few weeks ago. (Ultra-simple MIDI Synth using VS1103b Sparkfun BOB)
Since then, [...]

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Simple TDA2030A Headphone Amplifier

I needed a stand-in for the now non-operational headphone amp on the Alesis Mixer I recently ‘resurrected’. An op-amp and two discrete transistors came to mind, but I dismissed this for my solution. The TDA2030A has been around a long time, but is still readily available, and more importantly, is only pennies more than an [...]

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Breakout Board For PoScope Logic Analyzer

I wanted to use a pluggable breakout-board to connect small probes to my PoScope, which has a 25-pin D plug. Others may find this useful so I’ve presented the Eagle files etc., below.

The Completed PoScope Logic Analyzer BOB

As can be seen from the photo above, my BOB has on-board 2mm sockets – 8 [...]

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The Great Unwashed At Play In Cullercoats

http://cullercoats.joebrown.org.uk/#20

More PICs here: http://cullercoats.joebrown.org.uk/#20.0

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Retro Gear

From time-to-time I’ll add documentation/schematics etc., from my stash of manuals.

AKAI 4000D

To start you off, here’s a pic, together with a PDF document of the original User Manual and schematics.

AKAI 4000D – in original condition, and still going strong!

Click on the image below for the User Manual (includes schematic).

AKAI 4000D User Manual & [...]

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