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Post pics of your builds.... - Page 222

post #3316 of 8599
6/1/08 at 4:16am
Quote:
Originally Posted by jonjon0nline View Post
^Whoa! How long did that take to polish?
A couple of hours. Longer than it took to build the amp actually.
Quote:
Originally Posted by agutt View Post
^and how did you polish it?????
Very fine sandpaper, up to 600 grit.
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post #3317 of 8599
6/3/08 at 8:10am
Quote:
Originally Posted by OverTork View Post
Those aluminum enclosures clean up nicely too. This is one I did a few months ago, also for a simple CMOY amp.
Ok you've inspired me, gonna have to find me some sandpaper...
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post #3318 of 8599
6/3/08 at 8:58am
If you really want to make it shine like a mirror, go up to 1200 grit and wet-sand it, followed by some fine-polishing compound (like those used for automotive finishes).
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post #3319 of 8599
6/3/08 at 3:20pm
Fine steel wool also works well for polishing aluminum.
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post #3320 of 8599
6/5/08 at 4:29am
Something a little different. I got my hands on a ChainTech AV-710 that I briskly modded as much as I could in one sitting

The mods:

1) 3.3V regulator bootstrapped to 5V regulator.
2) Regulator input caps are 220uF Elna Silmic II
3) Regulator output caps are 10uF Tantalum, and 10uF Elna Silmic II bypassed by 1uF Tantalum
4) DAC PSU caps are Nichicon UHE 100uF bypassed by 0.22uF Wima MKP-2
5) DAC Output caps BlackGate NX 47uF/6.3V

Photots:


There is definitely a great improvement over stock in sound quality, and yes, this thing now beats my extreme boutique AlienDAC with BlackGate PSU and AuriCap output! Now I'm already thinking of ordering a pair of 1uF Sonicap Gen 1 to replace those BlackGates
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post #3321 of 8599
6/5/08 at 11:39pm

Sigma22

Power supply for the Beta22 I'm working on. I'm probably 3/4's the way done with the Beta22 itself unless something goes sideways on me.



Matt
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post #3322 of 8599
6/6/08 at 12:35am
Nice, Ech0.

Is the B22 going in the same size/style case? Two of those stacked would look pretty speccy.
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post #3323 of 8599
6/6/08 at 1:05pm
Quote:
Originally Posted by OverTork View Post
Those aluminum enclosures clean up nicely too. This is one I did a few months ago, also for a simple CMOY amp.

[img]Shiny Shiny Enclosure[/img]

That looks great, and im betting it would look very swish with some tubes sticking out of it... hmmm, i wonder how big they come!

I think you may have started something here OverTork!
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post #3324 of 8599
6/6/08 at 10:56pm
Quote:
Originally Posted by Beefy View Post
Is the B22 going in the same size/style case? Two of those stacked would look pretty speccy.
Hey Beefy,
Thanks! The other case is going to be the same style, but, size slightly deeper than this one to fit everything in. It's a 20 series Par-Metal case.

Now, please tell a middle aged man what the heck "speccy" means.

Ech0
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post #3325 of 8599
6/6/08 at 11:28pm
Quote:
Originally Posted by Ech0 View Post
Now, please tell a middle aged man what the heck "speccy" means.

Ech0
Aussie slang for special......
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post #3326 of 8599
6/8/08 at 1:15am
Thanks for the explanation / definition. I didn't even have a guess.

Done w/the B22 we'll see tomorrow how it does w/the initial setup (fingers crossed).
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post #3327 of 8599
6/9/08 at 2:04am

a teaser

for anyone who happens to be following along ..dB

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post #3328 of 8599
6/9/08 at 2:19am
Quote:
Originally Posted by dBel84 View Post
for anyone who happens to be following along ..dB
heh heh, i didn't think that design was that far along
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post #3329 of 8599
6/9/08 at 2:54am
it just sorta happened, starts off with idle chat and then momentum interferes ..dB
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post #3330 of 8599
6/9/08 at 3:23am
Quote:
Originally Posted by dBel84 View Post
for anyone who happens to be following along ..dB
Forgive my ignorance.... but what exactly am I looking at?
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