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Old 2nd June 2011, 03:38 PM   #31
tubemax is offline tubemax  Netherlands
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This how I did several times - as simple as possible with wooden strips around 19 inch rack aluminum or with left-overs from dead MacPro G5 computer.
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Old 6th January 2013, 08:23 PM   #32
Cassiel is offline Cassiel  Libya
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It is so rare to find a good chassis design nowadays, so I'm posting this.

73.500 yens or about 650 euros. A chip amp with a tube buffer or an hybrid with mosfets. Don't know, probably you can get same thing in China for much less. Thing is, I would gladly pay the extra cash only because I like the design. It is a pleasure to look at.

22 [tu:tu:] HYBRID TUBE AMPLIFIER
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Old 6th January 2013, 08:49 PM   #33
Jaap is offline Jaap  Netherlands
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Quote:
Originally Posted by Cassiel View Post
It is so rare to find a good chassis design nowadays, so I'm posting this.

73.500 yens or about 650 euros. A chip amp with a tube buffer or an hybrid with mosfets. Don't know, probably you can get same thing in China for much less. Thing is, I would gladly pay the extra cash only because I like the design. It is a pleasure to look at.

22 [tu:tu:] HYBRID TUBE AMPLIFIER
Looks a lot like the famous and timeless Braun design
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Old 6th January 2013, 09:23 PM   #34
Cassiel is offline Cassiel  Libya
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Quote:
Looks a lot like the famous and timeless Braun design

The Japanese designer quoted ” LESS AND MORE : The Design Ethos of Dieter Rams” on his blog, so yes, same philosophy.
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Old 17th October 2016, 07:39 PM   #35
jfetter is offline jfetter  United States
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Quote:
Originally Posted by Cassiel View Post
The Japanese designer quoted ” LESS AND MORE : The Design Ethos of Dieter Rams” on his blog, so yes, same philosophy.
Any other info on it? Googled quite a bit and no internal pics or schematic.
I too subscribe to the Dieter Rams concept.

My amps use only a 'tilt' for tone control. The Japanese hybrid designer maybe same.
22 [tu:tu:] HYBRID TUBE AMPLIFIER


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Old 17th October 2016, 08:29 PM   #36
djn is offline djn  United States
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I built this one with a cheap tube cutter and a soldering torch.
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Old 17th October 2016, 08:38 PM   #37
ratbagp is offline ratbagp  United States
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That's intriguing. How did you do the lattice work?

ray
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Old 18th October 2016, 12:36 AM   #38
djn is offline djn  United States
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I had those strips of copper and just wove them and soldered them to the frame.
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Old 18th October 2016, 02:17 AM   #39
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I've been making chassis out of a few feet of board and $6 of 1/8 aluminum plates for a bit now.

Here's cutting the box/apron:
Tube Amp Chassis for under $20 - Album on Imgur

And here's cutting top plates:
Cutting an aluminum tube amp top plate - Album on Imgur

The only power tool required is a drill.

Couple of the amps:

Click the image to open in full size.

Click the image to open in full size.

Finish is Danish Oil on both of those. The above method is a little time consuming (miter cuts, gluing, finishing) but it costs maybe $20 a chassis total and they come out looking nice.

I just got a power miter saw and I'm planning on trying a more precise inset plate for the next batch of amps.
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Old 18th October 2016, 08:31 AM   #40
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Here's an example of using 19" rackmount parts for chassis. I use a 2U dimension. Very versatile, though not cheap. You need the horizontal rail and threaded insert. The top plates screw in and out easily. Top plate widths are 100, 70 and 50mm, which covers almost everything. Sometimes you need 120mm. I've used this modular construction for years, and I can and do re-cycle parts frequently. No need to breadboard either. It's very convenient to build an amplification stage or a power supply on a plate - easy to work on - then just screw it in and wire it to the other plates.
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