| Niila |
This is Gainclone..which is still under construction. Nothing special here; just LM3886 Briangt kit. It doesnt have volume pot, so i need to use preamp. I think thats better.
I built the first version of my gainclone about year ago..the sound was tasty..but the look was terrible and heatsinks way too small... So here we go.
I DID have some really hard time with that case.. better look good when finished! :D
I still need to sand rear and front panels and maybe anodize or something, install everything inside and do little this and that.
I will update this thread as my project goes on.
Cheers! |
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| rjkdivin |
| quote: | Originally posted by Niila
I DID have some really hard time with that case.. better look good when finished! :D
Cheers! |
Very nice and interesting looking case Niila. It would be great to see some more pictures. |
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| Evilsizer |
| yea some side and top view shot would be cool to see. |
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| Niila |
Thank you!
Sorry i couldnt attach more pics because im still under moderation:D I will post those pics when i come home..atleast one. |
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| Niila |
| Front. Wood will cover both sides later on. |
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| Dennis Hui |
Niila,
Looks good. I think your pain will be worth it.
Of course, no pain , no gain. :)
Dennis |
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| Evilsizer |
| yea it really looks nice so far! dude thats over kill for cooling the chips :bigeyes: |
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| planet10 |
How thick is that plate? Looks like you are building it to survive being run-over by a fork-lift :)
I have some similarily thick 8" square tube, i have yet to cut down from its 12' length for use in chassis.
dave |
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| Audiophilenoob |
that looks to be at least 1/2" plate
my god man... that's thick alum |
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| carlosfm |
| quote: | Originally posted by Niila
Another top view |
Very very nice and clever arrangement.
Do you send samples of those chassis? :D
For evaluation, I mean. :usd: |
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| enzedone |
| That is some serious aluminium............I reckon if you melted that down you could build an entire japanese car out of all that............... :) I've just been looking at some alum, but dam it's expensive in New Zealand. But i was lucky to pick up a free 50x50x100mm block of copper which i will use for my next amp. And my amps are made out of Perspex, which i also scavanged for free.... its a pitty everyone so far apart, as i have loads of 6mm thick clear perspex i could send you people if needed. |
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| gamma |
| ojojoj...real "sisu engineering":) ....looks very nice |
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| Niila |
| Thanks! All plates except coppers are 1cm Aluminium..and the screws i used mostly are 6mm. Yes..right now it looks like an old russian tank..but i will do something to it:D The whole amp is just size of a one A4 sheet..exactly. |
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| SM7UYJ |
And as with many DIY projects - Total over kill !
I just love it ! :D
Nice case and a bit of "class-A look" over it!
(Perhaps it even has the kilos, not just the look!?) ;)
Looking forward to see the finished version! |
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| superhkm |
| quote: | Originally posted by Niila
Thanks! All plates except coppers are 1cm Aluminium..and the screws i used mostly are 6mm. Yes..right now it looks like an old russian tank..but i will do something to it:D The whole amp is just size of a one A4 sheet..exactly. |
Nooo ! Keep the russian tank look , dont go poisoning yourself with anodizing ( it will be illegal in the EU I've heard somewhere ) or fake it up with harwood panels, once you get this thing complete with similar heavy duty connectors and switches it will look awsome ! If I ever get around to a gainclone, yours will be an inspiration. Do you cut 10mm alu yourself ? And where did you get those heatsinks ?
Overkill...? is , what ..? I don't quite follow... |
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| Niila |
| Thanks! No its not illegal to anodize here:D But I cant anodize those panels..wrong type of aluminium. I desinged the chassis so that i can replace sidepanels if i want to. Ive been thinking what kind of panels i would use..maybe painted mdf plates..black or white..matt or shiny. Any ideas? I plan to paint front, rear and top panels black..what do you think? Aluminium that i used itself doesnt look very good because its mixed up with magnesium.. |
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| Niila |
| Oh..and those heatsinks are from local store.. |
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| wintermute |
| quote: | Originally posted by superhkm
Overkill...? is , what ..? I don't quite follow... |
Over Kill = much more than necessary :) Not quite sure of the origin, but I suspect it is military and has to do with using way more firepower than necessary to get the job done.... eg a rocket launcher when a rifle would have sufficed ;)
Tony. |
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| superhkm |
| quote: | Originally posted by wintermute
Over Kill = much more than necessary :) Not quite sure of the origin, but I suspect it is military and has to do with using way more firepower than necessary to get the job done.... eg a rocket launcher when a rifle would have sufficed ;)
Tony. |
I'm just trying to be funny , and so are possibly you. What I'm trying to say is that sometimes you do something because it feels/looks good and not because it's the just the absolute neccessity to reach a functional goal.
Or, I know a rifle would do the job, but rocket launchers are so much more fun. ;) |
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| wintermute |
hehehe sorry superhkm, with an international comunity like this sometimes people ask a question like that because they genuinely don't know ;)
tends to be a problem when we use idioms or slang at times..... if you put a ;) on the end I probably wouldn't have answered :rolleyes:
Tony. |
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| SM7UYJ |
Niila,
Is it Dural aluminium that you are using?
If so, I have anodizised quite a few panels of this material with good results! The plates are a bit "spotty" when raw and you have to but them in dilute Nitric Acid HNO3, before you anodize but results are fine. The surface comes out a bit darker then "standard" aluminium (if you do'nt colour when sealing), but I think it looks real good.
Either way you go, I'm looking forward to seeing your final result! :) |
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| Niila |
| quote: | Originally posted by SM7UYJ
Niila,
Is it Dural aluminium that you are using?
If so, I have anodizised quite a few panels of this material with good results! The plates are a bit "spotty" when raw and you have to but them in dilute Nitric Acid HNO3, before you anodize but results are fine. The surface comes out a bit darker then "standard" aluminium (if you do'nt colour when sealing), but I think it looks real good.
Either way you go, I'm looking forward to seeing your final result! :) |
Hi! right now i cant remember exactly what kind of aluminium that is..but i asked one guy who knows these things really well and he said that anodizing my panels would just bring up the magnesium, and give "graphite gray" color.. |
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| SM7UYJ |
Hi Nilla,
First, ist should not be dilute Nitric Acid but concentrated instead!
I'm no expert in the matter my self, but my father who helps me with my panels, has about 45 years experiance in the matter. When he says it will work, I just trust him and do it, and up until now he has been right! ;)
Of course I can anodize for free and have some room for mistakes! :D
I'll try to take some pictures of a panel made of Dural aluminium anodized and one of "standard" aluminum, and post them. |
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| Niila |
Ok, that sounds good..but what is concentrating? What ive heard is that anodizing aluminium just shows what it really is. I mean..in my case, it brings magnesium up.
Cheers! |
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| MunkeeVegetable |
| quote: | Originally posted by Niila
Ok, that sounds good..but what is concentrating? What ive heard is that anodizing aluminium just shows what it really is. I mean..in my case, it brings magnesium up.
Cheers! |
The concentrated was about the HNO3, as opposed to using a mix of acid and water (dilute solution) the concentrated is all acid.
Hope that helped :D
Sweet looking amp, I love the whole lot. Do you get any noise from the transformer? I was under the impression that you had to isolate the chips & transformer to minimise noise, but then again I'm very new to amp design/construction. :cool:
--Nathan |
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| Evilsizer |
| quote: | Originally posted by MunkeeVegetable
The concentrated was about the HNO3, as opposed to using a mix of acid and water (dilute solution) the concentrated is all acid.
Hope that helped :D
Sweet looking amp, I love the whole lot. Do you get any noise from the transformer? I was under the impression that you had to isolate the chips & transformer to minimise noise, but then again I'm very new to amp design/construction. :cool:
--Nathan |
many others have done there cases the same way with no noise. some have even has the trans. really close with a slight to no noise. |
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| Niila |
Thank you for your reply! But i still believe im going to paint and make it shine:D
No, theres no noise...dead quiet..like they say.
What do you think about the sidepanels? |
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| Niila |
Finally a nice proper keyboard..ive been using communicator because im on vacation:D -25c cold here.....I wouldnt mind having class-A amp with me:xeye: :smash: ok
Ok boys, you need to explain that concentrating to me better...im not really into these acids and chemicals youre talking about.
Does it create somekind of coating or what? Am i able to anodize my panels after concentration?
And...i guess I cant do it in my home....:D
Thank you for your effort!
-Niila |
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| MunkeeVegetable |
The concentration is not part of the anodising process, it's only the type of acid solution which the aluminium is treated (for cleaning? I don't know) before the anodising process can begin.
From Wikipedia:
"A layer of aluminium oxide is created on the surface of the aluminium from the action of the current being passed through the part, which is bathed in an acid solution.....This oxide layer increases both the hardness and the corrosion resistance of the aluminium. The oxide forms as microscopic hexagonal "pipe" crystals of corundum, each having a central hexagonal pore (which is also the reason that an anodized part can take on color in the dyeing process)."
I would suggest just taking your aluminium to a commercial place and they'll know what needs to be done. If you're unsure or want to know what's happening, just ask them, I'm sure they'd be happy to explain the process in detail :)
Hopefully these links will be handy: :D
http://en.wikipedia.org/wiki/Anodising
http://en.wikipedia.org/wiki/Concentration
-25C! Wow that's cold, where are you at the moment? It's just reaching summer here, so nice and sunny :cool:
--Nathan |
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| Niila |
Ok, i got it now.. Thanks for the detailed reply!
Yeah.. i was in lapland (northern part of scandinavia) for a week...We have 30cm snow also!!! :D
i will propably just sand it and then give a nice shiny coating somehow:) |
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