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Old 1st September 2011, 06:43 AM   #1901
portreathbeach is offline portreathbeach  United Kingdom
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Hi palstanturhin,

Great looking amps. Please can you tell me how they are assembled. I assume the amp in the first pic has threaded inserts in the wood to allow the front panel the be attatched, but how is the second one assembled?
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Old 1st September 2011, 06:57 AM   #1902
osscar is offline osscar  Latvia
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palstanturhin - very good work, i like it!
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My DIY so far: two Leach amps, Pass AB100, Pass F5, B1 buffer, Hiraga le monstre, two LM3875, LM1875, OPA549, 6C33C SE, GU32 PP, 6p3c-e PP, Marsh headphone amp.Phono - OBH-8se, Pacific RIAA, inDiscreet Phono, Whammy headphone amp.
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Old 1st September 2011, 07:13 AM   #1903
Howlindawg is offline Howlindawg  Ireland
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Palstanturhin,

What are the dimensions of the second amp?
Any internal shots?
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Old 1st September 2011, 08:16 PM   #1904
palstanturhin is offline palstanturhin  Finland
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portreathbeach got it right with the first set. The wood used in these is oak, very hard, easily threaded...Second amp has an alu frame made of different alu-profiles, like L,I,C, and even O!The heatsinks are first attached to similar length L-profiles. L-profiles also on the front and back... To these are attached the front and back plates 60mm wide 4mm thick alu... and the wooden sides.Bottom plate is 1mm alu sheet, and fastened with small L-profiles again to the 'main frame'...Back plate stays on with the binding posts and what ever connectors, front plate with the potentiometer and the toggle switch.Size is: W20cm(8"), H6cm(2.4"), D25cm(10")...No shots inside unfortunately...
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Old 4th September 2011, 08:08 AM   #1905
Professor is online now Professor  Russian Federation
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My recently finished tube buffered gainclone
Attached Images
File Type: jpg SDC11165.jpg (428.0 KB, 1957 views)
File Type: jpg SDC11169.jpg (450.0 KB, 1853 views)
File Type: jpg SDC11138.jpg (493.4 KB, 1730 views)
File Type: jpg SDC11159.jpg (445.4 KB, 1609 views)
File Type: jpg SDC11161.jpg (480.0 KB, 1494 views)
File Type: jpg SDC11144.jpg (483.3 KB, 738 views)
File Type: jpg SDC11153.jpg (562.1 KB, 923 views)
File Type: jpg SDC11151.jpg (531.5 KB, 792 views)
File Type: jpg SDC11142.jpg (523.5 KB, 641 views)
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Old 4th September 2011, 08:19 AM   #1906
osscar is offline osscar  Latvia
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another very clean and good work. How its sounds with tube buffer ?
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My DIY so far: two Leach amps, Pass AB100, Pass F5, B1 buffer, Hiraga le monstre, two LM3875, LM1875, OPA549, 6C33C SE, GU32 PP, 6p3c-e PP, Marsh headphone amp.Phono - OBH-8se, Pacific RIAA, inDiscreet Phono, Whammy headphone amp.
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Old 4th September 2011, 08:48 AM   #1907
Professor is online now Professor  Russian Federation
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Quote:
Originally Posted by osscar View Post
another very clean and good work. How its sounds with tube buffer ?
Sound clean and soft, maybe not so powerful like PA100 and PA150 but more detailed.
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Old 4th September 2011, 10:14 AM   #1908
bcmbob is offline bcmbob  United States
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Professor,

Very, very nice construction. I was attracted to your use of one transformer for multiple voltages. I am working on a build that requires four -Amp x 2, DAC, Pre and Lighter Note. I may use discrete transformers for the amps but would still like to combine the rest on one toroid if possible.

Can you point me to a source where I can get the information I need? I'm assuming you did a DIY board of some type.

Also, what's the flavor of the white wire?

Thanks
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Last edited by bcmbob; 4th September 2011 at 10:25 AM.
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Old 4th September 2011, 04:57 PM   #1909
Professor is online now Professor  Russian Federation
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Quote:
Originally Posted by bcmbob View Post
Professor,

Very, very nice construction. I was attracted to your use of one transformer for multiple voltages. I am working on a build that requires four -Amp x 2, DAC, Pre and Lighter Note. I may use discrete transformers for the amps but would still like to combine the rest on one toroid if possible.

Can you point me to a source where I can get the information I need? I'm assuming you did a DIY board of some type.

Also, what's the flavor of the white wire?

Thanks
I buy 2x25V toroid and wind missing windings myself. Originally I reel up some turns and I define how many it is necessary turns on one volt. Further I multiply the received number of turns on necessary voltage. For examlpe, you have received 5 turns on 1 volt, you need 25 volts, then you need 5*25=125 turns.
White wire is copper covered with silver in teflon.
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Old 4th September 2011, 05:47 PM   #1910
bcmbob is offline bcmbob  United States
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Professor - Now that's what I call DIY - Impressive!

If you don't mind, what is the green board under the transformer?
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