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Old 29th October 2011, 03:32 PM   #31
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That is correct. What Vgs it wants is a function of the individual fet, but i think you are in the right area based on what I have read. ITis generally in the area where the Fet is turned fully on. I think you are going to be surprised at the difference between it and your F5. I'll be interested in your opinions.
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Old 9th November 2011, 03:43 AM   #32
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Can anyone speculate how this will compare to, say, the First Watt J2?
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Old 9th November 2011, 04:10 AM   #33
6L6 is offline 6L6  United States
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It's going to have more power supply, better output devices, a more unique name, and it's going to look a bunch better. But the last two are my opinion.

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Old 9th November 2011, 10:09 AM   #34
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I love to speculate so I would guess it will sound more similar than different. The difference in sound will come from the slight difference in topology and how the Master chose to execute it.
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Old 9th November 2011, 12:11 PM   #35
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I've listened to a bunch of SemiSouth variants of my own creation.
They alll sound diffferent to me. if there is a 'use' SemiSouth sound, it's a bit cleaner on the mid-top than an IRF240 IMO.
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Old 28th November 2011, 08:45 PM   #36
6L6 is offline 6L6  United States
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A quick update to the project that is flowing along like cold molasses --

I finally found a machinist that is the type of guy I am looking for! (One man shop, understands prototyping, can get the idea out of my horrible sketches, etc...)

So now I need to make one last order to get some fancy-pants binding posts and XLR jacks, bring all the pieces to the machinist and the box will be built!

This may sound boring, but it's actually a giant leap forward for this project.

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Old 30th November 2011, 03:14 PM   #37
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How much does it typically cost to have a machinist build a class-a amp case?
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Old 30th November 2011, 06:10 PM   #38
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Depends on what you wanted, a fair number of machinist don't do one off stuff or will quote you extra high for the work. Mostly the setup takes all the time, the actual machine work doesn't take all that long. I pretty much only do one off projects and have small shop and rely on the fact that most of the biggers just won't do what I do. It's just because I hate repetitive work :-).
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Old 1st December 2011, 02:21 AM   #39
6L6 is offline 6L6  United States
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The cost is directly proportional to how much work you do beforehand. In general, you will want to start with your heatsinks and build around them. Just showing up with a photo of an old Krell and asking a machineshop to build it? You might as well just buy the old Krell and yank all the guts from it...

(Yes, I know that is a serious non-answer answer. Sorry...)

The best advice is to find a one-man shop. As soon as a boss has to send it to the floor and have somebody else make it, the cost is at least double.
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Old 21st January 2012, 05:02 AM   #40
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Any word on this project? It looks like you have a couple other projects going, but this one piqued my interest...
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