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Old 21st September 2009, 01:48 AM   #31
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Here is a picture of an assembled Placid BP with kit components:

Click the image to open in full size.

The BP kits are almost ready, and should be available this week. I am starting up the Positive-only kits this week as well, so hopefully they will be ready by the end of the week, or early next week.

Pricing will be as follows:

Placid (single positive-only) complete kit: $40
Placid BP (bipolar) complete kit (including mounting hardware): $60
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Old 21st September 2009, 01:53 AM   #32
Beefy is offline Beefy  Australia
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V2.1.1? It went through that many revisions?

Looks good Brian, and pretty keen pricing too!
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Old 21st September 2009, 02:16 AM   #33
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Quote:
Originally Posted by Beefy View Post
V2.1.1? It went through that many revisions?
Yes.

Quite a few revision before I was happy with it.

Thanks to Brian for pulling together kits so quickly.

I have been sick all weekend or the manuals would be done.

They will be in the next couple of days. They are actually pretty easy to set up.

Cheers!
Russ
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Old 21st September 2009, 02:35 AM   #34
nacder is offline nacder  Hong Kong
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Can I use a 18-0-18V transformer to power the Placid BP, tying AC1.2 & AC2.1 together?
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Old 21st September 2009, 07:57 AM   #35
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Is it possible to have the dimensions of the heatsinks? I'd like to look for 1-inch replacements.
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Old 21st September 2009, 04:37 PM   #36
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Quote:
Originally Posted by BrianDonegan View Post
....The BP kits are almost ready, and should be available this week....
Russ and Brian, this all looks splendid ;-)

Russ
p.s. Is it me or is the QP2 in the wrong way round? Hard to see from the picture but looking at the board layout posted earlier, it appears to be the opposite way to the the others, but not in the picture. Could just be the picture of course... or my eyes...
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Old 21st September 2009, 04:52 PM   #37
Salas is offline Salas  Greece
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Quote:
Originally Posted by TheShaman View Post
Is it possible to have the dimensions of the heatsinks? I'd like to look for 1-inch replacements.
Can't they be soldered underneath the board, the FJPs I mean, and mounted with their backs against the metal floor of the box, or on a thick aluminum plate? That would avoid sinks up to a generous enough current and keep it almost flat for height?
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Old 21st September 2009, 05:54 PM   #38
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We oriented the power transistors specifically to accommodate enclosure mounting as an option.

The kit will come with 1.5" heatsinks which will be good for 90% of applications. They are a standard part, so changing to 1" or 2" is easily accomplished.
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Old 21st September 2009, 07:15 PM   #39
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Yes, I thought of mounting them on the enclosure's floor but they might end up being used on something different than a Buffalo where better heat management will be required.
Since I have an order pending at Farnell I though I might think ahead and order these now so that I have the luxury of choice!

Quote:
Originally Posted by BrianDonegan View Post
They are a standard part, so changing to 1" or 2" is easily accomplished.
Sorry that I insist Brian but "standard" is a very broad notion..
Could I have exact width and depth or, if it's easier for you, manufacturer and part number so I can look it up?

Last edited by TheShaman; 21st September 2009 at 07:18 PM.
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Old 21st September 2009, 07:22 PM   #40
Beefy is offline Beefy  Australia
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Quote:
Originally Posted by TheShaman View Post
Sorry that I insist Brian but "standard" is a very broad notion..
Could I have exact width and depth or, if it's easier for you, manufacturer and part number so I can look it up?
I would wager that this is the part Brian is using:

http://www.aavidthermalloy.com/cgi-b...=531102b02500g

They can be found in heights from 1" to 2.5". The 2" seems to be the sweet spot for lowest thermal resistance.
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