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audi0 audi0 is offline

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About Me

  • About audi0
    Biography
    You will have to wait for the book ;p
    Location
    37.34 degrees South
    Interests
    Most anything DIY and Bonsai
    Occupation
    Yes, unfortunately for a few more years yet
    Country
    Australia
    Real Name
    Steve

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General Information
  • Last Activity: 29th July 2013 11:43 AM
  • Join Date: 6th May 2009

Friends

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Blog

View audi0's BlogRecent Entries
Latest Blog Entry

Posted 26th November 2010 at 09:54 AM by audi0 Comments 0
Posted in Uncategorized
Hi guy's I haven't added to this blog for a couple of weeks as progress has been a little slow.

I have however had the front and back plates cnc milled and I have drilled and cut the connector holes in the back plate. The plates will now be cleaned up, acid etched and clear anodized.
The timber sides are cut and the threaded bushes are in, I still need to rabbet the top and bottom edges for the covers, but the enclosure is taking shape. I'm not sure about the perforated ally for a top? What do you guy's reckon?

A redesign has slowed the power supply board a little, I now have the board (thanks to Neville @ Sesame who etched and drilled it for me) all the components are ready to stuff, so the next blog will update how the power supply performs

Posted 15th October 2010 at 08:56 AM by audi0 Comments 0
Posted in Uncategorized
I got the last capacitor for the analogue stage upgrade in the mail today, I had a couple of hours of spare time so made a start. DE-soldering of surface mount components has got to be the worst job! It's slow painstaking work avoiding damage to pads and tracks, and this took the longest part of the job. A slight modification to the IC adapter was necessary to avoid hitting a capacitor otherwise reassembly was simple.
Plugged it in and away it went (sometimes I surprise myself!)
Nice sound immediately and I'm sure its only going to get better once the Elna's burn in!
I was surprised how sturdy the adapter is, there was no issue plugging in the IC, so chip rolling would be extremely easy.
A worthwhile modification? Yes I think so!

Posted 13th October 2010 at 08:43 AM by audi0 Comments 0
Posted in Uncategorized
Squeezebox SB3 update 1

A little progress made, I have sourced and purchased some components;
a Brown Dog DIP8 to SO8 Adapter plus a LM4562 and some Silmic II caps, one more of them still to arrive, then I'll swap the parts.

I have done a board layout based on ideas gained from this diyaudio thread [url]http://www.diyaudio.com/forums/power-supplies/85662-squeezebox-power-supply-3.html[/url] and preliminary ideas for an enclosure have been drawn. So it's slowly coming together

Posted 10th October 2010 at 12:00 AM by audi0 Comments 0
Posted in Uncategorized
After much deliberation I've decided to 'jump in' and modify my Squeezebox SB3.
I have read many threads on this and other sites gaining lots of ideas of what I want to try to achieve, basically as follows:

improved power supply, dump the wall wart and build a linear supply 5V @~ 3amps
improve the analogue section, initially trying different op amps and upgrading capacitors
remove the inductors from the digital out, add 75 coax and BNC connector (maybe add a transformer?)
upgrade to the 3.3V supply to the clock
build a new enclosure similar to a Peter Daniel amp, chunky aluminium back and front with timber sides (copying is the greatest form of flattery!)

I have made a start, opened it up and discarded the old plastic box. De-soldered the connection board and set aside, then soldered temporary wires for power L & R out and ground back to the connection board (temporary connection)

To get the board into...

Posted 27th January 2010 at 04:40 AM by audi0 Comments 0
Posted in Uncategorized
[FONT="Verdana"][SIZE="2"]Over the last couple of years amongst other things, I have been playing around with T amps changing and upgrading components, noting changes etc. When I saw the ‘Inductor Evaluation Help’ thread by ICE_Mag it was of immediate interest to me.
I have read a fair bit about the audible effects of different inductor types used in these amplifiers, some people liking air core and others ferrite core toroids etc. so I registered my interest with the supplier.

It then occurred to me which of my amps (I had three T amps at that stage) would be the guinea pig for my trial; I pondered on this for a while thinking that although all were modified, they are all in a condition where they could be sold if they became surplus to my needs.
I therefore looked on eBay and saw an Hlly amp at the right price, so I bought it.

The inductors arrived, two each of three different sizes (all 10mH) hmmm I thought, how am...
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