Justblairs Audio and Electronics Pages

Arduino Workshop in Glasgow 2nd July

Fri, 01 Jul 2011 14:44:00 GMT

On the 2nd of July 2011 I am organising an Arduino Workshop at the Center for Contemporary Arts, Sauchiehall Street, Glasgow. The workshop is being held at the Electron Club room and we meet at 1pm (Presentation starts at 1:30). We are going to begin with a presentation about the Arduino programming environment which will be suitable for everyone. I hope to give a short guide on the software and demonstrate the building of a couple of simple sketches. After there will be a chance to compare projects, seek advice from other attendees and generally chat and plan how...

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Sure TA2024 - Power Line Modifications

Sun, 12 Jun 2011 21:52:06 GMT

The Sure Electronics Tripath TA2024 Board is out of the box a good value for money amplifier module. However with some careful tweaking it can be made to sound better. This article focuses on the power supply to the Tripath chip and shows some improvements that can be made. Read more...

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Sure 2024 – Signal Line Modification Part 2

Sun, 12 Jun 2011 21:29:30 GMT

So far I have modified several aspects of the Sure TA2024 board. In this article I look again at the input to the device and swap over the input capacitor. Read more...

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Sure 2024 – Signal Line Modification Part 1

Sun, 12 Jun 2011 21:12:26 GMT

The Sure Electronics TA2024 Amplifier impressed on my first inspection although suffered from Poor DC offset and a slightly dull sound. This is the second modification I have made which is aimed at improving the top end sound of the amp. Read more...

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Sure TA2024 DC Offset Mod 2

Sun, 12 Jun 2011 20:59:28 GMT

In in another article, I showed how the Sure Tripath Boards unacceptable DC could be reduced significantly by removing a pair of resistors from the PCB effectively disabling Sure's attempt at a DC offset reducing circuit. This article takes the modification a step further to eliminate DC offset completely. Read more...

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Sure TA2024 DC offset Mod

Sun, 12 Jun 2011 20:45:43 GMT

In the last article we looked at the Sure TA2024 amplifier boards, fresh from their box. Amongst the issues identified is that the Sure boards have an issue with DC offset. This article shows how with a very quick modification the DC offset of the boards can be improved upon. Read more...

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Sure TA2024 Tripath, A first look

Sun, 12 Jun 2011 20:22:15 GMT

The Sure Tripath amplifiers offer a Tripath 2024 chip Class T amplifier for $22 plus shipping from Najing, Jiangsu, China. So what do you get for roughly £15 of amp? Read more...

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Building a Pedja Rogic Buffer

Sun, 12 Jun 2011 20:00:46 GMT

A while ago I embarked on a simple project to build a PCB version of Pedja Rogics 2SK170BL driven buffer. This buffer has a very good reputation within DIY circles due to its sound quality. For my project I wished to build as good a buffer as possible. This article covers the populating of the PCB Read more...

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LiTe Dac Ah – Revisited. (and a PS1)

Sun, 12 Jun 2011 18:26:00 GMT

This article follows on from Robert Powell’s original review of the LiTe Dac Ah, a budget digital to analogue converter from the Far East. Its low price and high specification makes it a popular choice with the hobbyist, but can it give a little more if modified. This article detailing modifications of the LiTe DAC Ah was originally published in Affordable$$Audio E-Zine in the May 07. With kind permission of Affordable$$Audio and the Author Robert Powell I am pleased to re-publish it here. Read more...

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Playstation 1 Audiophile CD Player

Sun, 12 Jun 2011 17:37:51 GMT

Robert Powell tackles the Playstation 1, an unlikely contender in the world of high quality Hi-Fi. However with a little care, these games machines can be tweaked into serious audio performers. Read more...

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