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Old 22nd February 2013, 09:07 PM   #1641
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Nice job rookakoma That is one of the nicest and well build diy amp I have seen here!
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Old 23rd February 2013, 04:58 PM   #1642
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Thanks, Guys!
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Old 23rd February 2013, 09:56 PM   #1643
bbm3 is offline bbm3  United States
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Default B1 Bench Test

I uncovered this Nelson Pass B1 board in my toy box last week.
I decided after finding it along with the matched JFETs it was time to give it a go.

An absolutely perfect match for a gainclone.

I declare it more than worthy of a proper enclosure and a permanent place in my DIY bedroom audio system.
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Old 24th February 2013, 08:37 PM   #1644
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Familiar pictures for those reading the Pearl II thread, but for the rest of you here's my version of the Pearl II. It sounds really great!

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
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Old 24th February 2013, 08:45 PM   #1645
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Nice - how did you make the logo and text?
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Old 24th February 2013, 11:44 PM   #1646
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Quote:
Originally Posted by bbm3 View Post
I uncovered this Nelson Pass B1 board in my toy box last week.
I decided after finding it along with the matched JFETs it was time to give it a go.

An absolutely perfect match for a gainclone.

I declare it more than worthy of a proper enclosure and a permanent place in my DIY bedroom audio system.

Nice looking B1. Are you going to make a case to match the amp in the background?

btw... What are you powering it with?
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Old 25th February 2013, 06:06 AM   #1647
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Quote:
Originally Posted by R-K Rønningstad View Post
Nice - how did you make the logo and text?
I had it made in a shop that specializes in self adhesive lettering. Just upload the text, choose a font and presto. For the logo, just view a pdf manual at 400% and take a screenshot
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Old 26th February 2013, 04:58 PM   #1648
Bernt is offline Bernt  Sweden
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Recently I sent pictures of my water cooled SofZ V7T to Nelson. He wrote back with a suggestion that I post the pictures here also. So, here are some pictures for you guys:

The load toroids are 2000VA each. Capacitors for the input.

Click the image to open in full size.


The power supplies are put together with stuff from the junk box, choke filtered. One supply/channel.

Click the image to open in full size.


Amd one picture of the heat sink, this is integrated with the heating system in the house.

Click the image to open in full size.

Two more pics:

Click the image to open in full size.


Click the image to open in full size.


Schematic: http://www.passdiy.com/pdf/zen-v7.pdf (Figure 8)
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Old 26th February 2013, 05:33 PM   #1649
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Bernt, that is a pretty nice looking and creative build, however it does lack that one little something... what it really need is a blue LED and the PassDIY sticker somewhere and I will say your build is complete.

Without the LED and sticker, what is the sound like and how many watts are you producing?

Otherwise, all joking aside, that is a very green, an excellent use of cooling (if that water is cold enough), creative, and if I had a junk box like yours I think I would be very happy (but what is the sound like)?
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Old 26th February 2013, 05:44 PM   #1650
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That's cool! Are there any ill effects of having so much wiring between all the different components?
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