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Old 29th April 2012, 11:56 PM   #1491
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Quote:
Originally Posted by 6L6 View Post
A good PCB makes anything easier -- even the things that can be done point-to-point.
Power supply kit ordered!

Russellc
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Old 30th April 2012, 12:18 AM   #1492
exojam is offline exojam  United States
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Russell,

If you ordered the same unit as I did the PS-KIT, it does not come with any documents or anything.

I was able to find this on line for it though. What I found funny about that is it is from their website but if you go out there, there is no "docs" link, at least that I could see (could have just flat out missed it though).

http://chipamp.com/docs/lm3886-manual.pdf

James
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Old 30th April 2012, 01:50 AM   #1493
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Quote:
Originally Posted by exojam View Post
Russell,

If you ordered the same unit as I did the PS-KIT, it does not come with any documents or anything.

I was able to find this on line for it though. What I found funny about that is it is from their website but if you go out there, there is no "docs" link, at least that I could see (could have just flat out missed it though).

http://chipamp.com/docs/lm3886-manual.pdf

James
Thanks....Yes I swear they used to have the Aleph boards schematics, but I cant find it now.

Russellc
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Old 30th April 2012, 03:12 AM   #1494
6L6 is offline 6L6  United States
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They have the amp and PSU boards still, I just used one of the PSU in a new F5 build. It's quite nice.

As fot the schematics and info, just ask... People around here will provide.
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Old 1st May 2012, 02:43 AM   #1495
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Here are some photos of a battery powered Pearl 2 and a B1 build. I have to say that these sound, well, phenomenal! After years of trying different electronic equipment searching for that sound that you can say, "this is it", Yes, I can say "this is it!" One can sit, hear, and listen to the music with awe. There is such a quietness and presence that the music is almost in a way unbelievable at times. I also have a AKSA 100 N+ amplifier and Statement monitors. As for the sound of digital, well, it is exactly that.

I would like to thank Wayne Colburn and Nelson Pass for the designs and input. 6L6 (Jim) for his help and for the grounding and voltage checks. And Curt from Speaker Design Works for directing me to the B1 and Pearl 2 and the charger input and guidance through the builds along with multiple excellent speaker builds.

Here are some photos, enjoy!

Click the image to open in full size.

Pearl 2, inside the RIAA box

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Sealed lead acid battery PSU and Pearl 2

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From the back

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Shown with charger

Click the image to open in full size.

And here are the insides of the battery powered B1.
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Old 1st May 2012, 05:08 AM   #1496
6L6 is offline 6L6  United States
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Wow! Everything looks great!

The battery powered Pearl is really intriguing - I might try it some day.
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Old 4th May 2012, 12:53 AM   #1497
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See my own built at My Pearl2 Built
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Old 5th May 2012, 02:39 PM   #1498
exojam is offline exojam  United States
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So I have either picked up or order what I believe to be the last small parts.

regulator
fuse holder
fuses
Cap for power supply
red leds

I also have on hand some Arctic Silver 5, will this work for the ICís and heat sinks?

Next things to do is get some small nuts and bolts for the heat sinks. Also need to place everything on paper to see if it will fit for a chassis I am looking at.

What size standoff are people using beneath the boards? Is everyone also using nylon washers on each side of the boards where the standoffs go?

Slowly making it there.

James
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Old 5th May 2012, 03:09 PM   #1499
6L6 is offline 6L6  United States
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Hopefully that't the last of the little bits you need for the project!

A couple of nylon washers underneath the board makes a nice standoff, sometimes even nicer than 'real' standoffs. I use 4-40 hardware to mount PCB's, RadioShack has a nice bag with lots of good sizes for cheap. Also, you might be able to find some nylon spacers at your local hardware store.

Arctic silver is an adhesive, (unless I am mistaken) so I wouldn't glue the regulators to the heatsinks. If your regulators are the encapsulated TO-220 (with the plastic back) then just a little heatsink compound (the white stuff) will be fine. If they are metal-backed, you will need an insulator and shoulder washers.
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Old 5th May 2012, 03:24 PM   #1500
exojam is offline exojam  United States
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6L6,

The Artic Silver 5 is a Thermal Compound (Polysynthetic Silver – High Density). Still no good?

I also misspoke; it was the Bridge Rectifier I ordered (not a regulator). The one below is what I got.
http://www.mouser.com/ProductDetail/...3z4BWuZQpu8%3d

Thanks, James

Last edited by exojam; 5th May 2012 at 03:28 PM. Reason: added info
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