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Old 25th November 2009, 12:22 PM   #1
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Default Kit arrived

Woo Hoo its here... Soon as I stop shakin with exitement I'll get started.

Just gotta find the thread that shows me how.

Thanks Peter. kit looks cool
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Old 25th November 2009, 02:43 PM   #2
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You will find description of possible configurations here: AudioSector-chip amp kits, dacs, chassis

Amp and PS as per attached schematics. The yellow foils strip inside schematic sheet supplied with a kit is for chip isolation from a heatsink.

For more general info on amp building please refer to this thread: Commercial Gainclone kit- building instructions (Please note that the diodes on LM4780 PS board are installed opposite to LM3875; just observe white stripes marking metal tabs orientation).

If you need more specific info, please post questions here.
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File Type: jpg Amp.jpg (118.2 KB, 1593 views)
File Type: jpg PS.jpg (140.4 KB, 1569 views)
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Old 25th November 2009, 04:58 PM   #3
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Ok I'm all set to go, Ive stopped shaking and have finished harrasing Peter via PM, thank you for all your help.
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Old 25th November 2009, 05:57 PM   #4
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Got the 1st three 22k ones in... Are these next two the right ones?

I have written what I think the values are, please correct me if im wrong.

Click the image to open in full size.
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Old 25th November 2009, 08:42 PM   #5
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I have soldered these into place but still not sure if its right...

I'm gonna join the bridges between boards coz I can do that bit.. I'm still not sure about other resistors ID yet. All the pics I can find look like different parts in places to what I have. Chill for a bit, try again soon.
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Old 25th November 2009, 10:19 PM   #6
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This is how the resistors should be installed for parallel configuration. Please note that R0 is intentionally omitted. Also ad the jumper and Rm as pictured here: http://www.diyaudio.com/forums/attac...lel-bottom.jpg
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File Type: jpg res.jpg (199.1 KB, 432 views)
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Old 25th November 2009, 10:27 PM   #7
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Sweet.. just gotta put the large ones in now.

I will put a picture up when I've got them done... This is my first ever time soldering a pcb so its taking me a little longer than most.
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Old 25th November 2009, 10:33 PM   #8
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MUR's??? The ones I see are the same way I've put mine in, but I notice that on other pics the flat metal side is towards white line, mine are opposite way. Have I looked at wrong kit and got it back to front?
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Old 25th November 2009, 10:37 PM   #9
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Quote:
Originally Posted by Peter Daniel View Post
(Please note that the diodes on LM4780 PS board are installed opposite to LM3875; just observe white stripes marking metal tabs orientation).
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“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
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Old 25th November 2009, 11:09 PM   #10
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So to be clear, the diodes in LM4780 kit install as pictured:
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