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Go Back   Head-Fi: Covering Headphones, Earphones and Portable Audio > Misc.-Category Forums > DIY (Do-It-Yourself) Discussions

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Old 01-03-2008, 12:43 PM   #2841 (permalink)
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Very nice, Ferrari! What kind of attenuator/pot is that? Are you going to shaft it to the front or is that a temporary position?
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Old 01-03-2008, 01:32 PM   #2842 (permalink)
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Originally Posted by tomb View Post
Very nice, Ferrari! What kind of attenuator/pot is that? Are you going to shaft it to the front or is that a temporary position?
The volume control is an old DACT CT2/4-channel version I have in my parts bin for a while, housed in a small metal case.
I placed it near the input connectors to keep the signal paths as short as possible.
Extension shaft will be used to connect it to the volume knop on the front panel.
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Old 01-03-2008, 01:45 PM   #2843 (permalink)
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Absolutely gorgeous Ferrari. The cleanest β22 I've ever seen. Can't wait to see finished pics!
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Old 01-03-2008, 02:10 PM   #2844 (permalink)
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Ferrari, is that the maggiorato version of the galaxy or the "regular" one?

Looks really awesome! I have plans( in a distant future, when money allows...) to build a balanced B22. I'm studiing heatsinks and all because I want the full 50W per channel for speaker duty!

Is the attenuator case DIY or did you buy it like that?
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Old 01-03-2008, 03:22 PM   #2845 (permalink)
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Originally Posted by MASantos View Post
Ferrari, is that the maggiorato version of the galaxy or the "regular" one?

Looks really awesome! I have plans( in a distant future, when money allows...) to build a balanced B22. I'm studiing heatsinks and all because I want the full 50W per channel for speaker duty!

Is the attenuator case DIY or did you buy it like that?
MASantos, the enclosure is not from the Galaxy family. It's a Slim Line 2 Unit with 10mm faceplate.
The small attenuator case is partly DIY. The top and bottom metal parts (a kind of U shape) are bought from an electronics dumpshop locally. I made the front and back plates out of 2mm aluminum to keep other parts of this small case together.

If you go for the full 50Watt per channel for speaker duty, you should consider off-board heatsinks. It really needs that!
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Old 01-03-2008, 03:43 PM   #2846 (permalink)
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OMG! Ferrari...that is fabulous. That settles it. The b22 is my next build. It wont look as good as yours, though.
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Old 01-03-2008, 07:01 PM   #2847 (permalink)
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Err, Ferrari,

do I spot the wrist band of a wrist watch there in the middle, hooked up to something, or what is that...?
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Old 01-03-2008, 07:04 PM   #2848 (permalink)
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Looks to be a ESD grounding strap.
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Old 01-03-2008, 07:46 PM   #2849 (permalink)
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Let's see that front panel Ferrari, we gots to put a face on this beautiful soul!
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Old 01-03-2008, 08:35 PM   #2850 (permalink)
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Thanks for the kind words gents!

@stixx, LOL... that wrist band is my Super Breitling ESD ...
naamanf is right, it's a ESD grounding strap. Same as my work place (table, chair), it's connected to ground.

@Mazuki, I will complete that amp in the coming weekend. Pics with the faceplate will follow in a couple of days.
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