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Old 5th October 2006, 03:03 PM   #131
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Default Re: Too bad about the ...

Quote:
Originally posted by FastEddy
... The Fan ... does it ever come active?? Wondering if it is actually needed.

The area of radiators is too small


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Old 5th October 2006, 03:08 PM   #132
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Quote:
Originally posted by Mick_F
Hmmmm. I think the feedback path is far too long and the supply caps are too far from the chip.

Mick
It is compensated by thickness of paths
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Old 8th October 2006, 02:32 PM   #133
durxter is offline durxter  Netherlands
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Default My Gainclone Project

This is my Gainclone project. I designed my own PCB and build an alu case from scratch.

The amp has an external power supply, as can be seen at the photo's.

Click the image to open in full size.

For more info check my homepage
my diyaudio site
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Old 8th October 2006, 02:42 PM   #134
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Very clean, Durk.
What did you do to the aluminium front plate ?

(ex watercooled Zündapp owner, heavily tuned German production model KS50, 130kmh )
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Old 8th October 2006, 02:51 PM   #135
durxter is offline durxter  Netherlands
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To answer your question about the frontpanel of my GC:

It is just painted with silver wheelpaint (Motip velgenspray). Nothing special actually. In the future I will try the principle explained on a tread from the forum www.zelfbouwaudio.nl (dutch only)

Which gives a scratchproof surface, also low cost.....
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Old 8th October 2006, 11:03 PM   #136
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Default integrated gainclone and Digital receiver

This was my first gainclone... a single integrated component. The chassis houses LM3875 bpards (Audio Sector), a NOS DAC (also audio sector) and a digital audio receiver by squeezebox.
The amp uses two PLitron toroids (120 V 22VAC). The case was manufactured by
Hexateq AV and i applie the custom black anodize finish on this end.The sound is clean and fast. I am a little dissapointed in the gain so i may investigate a buffer section.
It is still burning so i wwill wait before i pass judgement, but so far i like what i hear.
Thanks to everyone who lent there hand, Peter Daniels, Richard Krolla and the community at DIY audio.
Cheers
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Old 8th October 2006, 11:06 PM   #137
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another image of the interior...
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Old 9th October 2006, 06:04 PM   #138
jaste is offline jaste  Sweden
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A question for durxter, what kind of powersupply did you use? Looks like its only the transformator in the black box? How does it sound?
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Old 9th October 2006, 06:17 PM   #139
durxter is offline durxter  Netherlands
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The power supply is a single transformator 2x22V 225VA. The diodes are mounted on the PCB in the amp case.

It sounds very nice in combination with my TQWP's. It's a very good sounding amp, which can compete with many commercial amps costing more money.
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Old 10th October 2006, 07:42 PM   #140
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Default My Gainclone

Click the image to open in full size.
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