Another compact GainClone (GainBlock) - diyAudio
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Old 3rd July 2010, 08:57 AM   #1
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Default Another compact GainClone (GainBlock)

I build several GC, but I always wanted to use benefits of small circuitry to make it as small as possible. Final result was by using insulated transformer, mounted on top of case. The results are on the pictures.

I hope it would be interesting for others.
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File Type: jpg IMG_6436.JPG (128.6 KB, 339 views)
File Type: jpg IMG_2524.JPG (78.6 KB, 334 views)
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Old 3rd July 2010, 01:07 PM   #2
asbjbo is offline asbjbo  Norway
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Very nice!
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Old 3rd July 2010, 01:09 PM   #3
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Thumbs up for the Cambridge mate
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Old 3rd July 2010, 01:34 PM   #4
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Nice! This is how I would have built a GC after seeing the first 47Lab one . Not going like Dungeon's replica ...well ,that was nice ,too !
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Old 4th July 2010, 02:59 PM   #5
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If anybody needs, PCB just let me know. It is practically point to point design, pcb used only in order to preserve chip legs, since I manage to brake it once and one lm3875 went to rubish bin.

This based as mentioned on LM 3875. It also have passive preamp with 2 attenuators (Lorlin switches with resistors chain). Currently it drives B & W 601 pair due to my laziness to finish my DIY paper cone speakers:-)
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File Type: jpg GCSchematic.jpg (72.9 KB, 239 views)
File Type: jpg gainclone 005.jpg (192.6 KB, 236 views)
File Type: jpg gainclone 023.jpg (187.8 KB, 170 views)
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Old 4th July 2010, 03:20 PM   #6
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Quote:
Originally Posted by Insertname View Post
Thumbs up for the Cambridge mate
Cambridge is another great company:-) I can built DAC, but it would not look as good while savings will not be drastic. This little gem worth every penny, maybe tube buffer in the future will be the only upgrade to cambridge magic dac:-)
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