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Old 8th March 2013, 06:12 PM   #1711
NSP is offline NSP  Finland
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Someone made me drink too much beer tonight. 18+18 volts is what I ment. As we say in Finland "Kippis"
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Old 8th March 2013, 06:12 PM   #1712
WalterW is offline WalterW  Netherlands
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Looks great, that's gonna be a fine case when finished. How on earth do you make you're own transformer casing?
BTW: the transformer looks a bit small for 2 x 18V, 600VA, or is it just the picture?
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Old 8th March 2013, 06:30 PM   #1713
NSP is offline NSP  Finland
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Thanks Walter!

The transformer is about 150 mm in diameter, 40 mm high and weighs about 5 kilos. I ordered it from Toroidy so I hope it's the real deal.

The transformer casing is made out of 3 mm thick sheet metal that i rolled and TIG- welded together. Then a 3 mm lid was silver soldered on and trimmed down to right diameter in a lathe. Quite easy made, but I hope the inside of the amp will be more "clean" looking.

Here are some pics of the casing.

Click the image to open in full size.

Click the image to open in full size.
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Old 8th March 2013, 06:45 PM   #1714
massimo is offline massimo  Italy
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Quote:
Originally Posted by NSP View Post
Quite easy made....
Maybe for you, not for us without the right tools...
Nice work nonetheless
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Old 8th March 2013, 07:00 PM   #1715
NSP is offline NSP  Finland
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Quote:
Originally Posted by massimo View Post
Maybe for you, not for us without the right tools...
Nice work nonetheless
Thing is that I don't own any tools that can do that, I just happen to work at a place that got the right tools and machinery that I sometimes use for my own hobbies.

Thank you!
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Old 8th March 2013, 07:07 PM   #1716
WalterW is offline WalterW  Netherlands
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If it weighs 5 kg it's 600 VA !
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Old 8th March 2013, 09:53 PM   #1717
NSP is offline NSP  Finland
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I thought so. It's big and heavy!
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Old 8th March 2013, 10:04 PM   #1718
Zen Mod is offline Zen Mod  Serbia
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I just hope you're not going to drill a hole in center of it ........ and to put common screw , for both toroid and cover



( we already had few examples , needing 3 pages of explanation to builder , that he is having short circ messing with precious toroid , while he wasn't prepared to believe that we aren't pulling his leg ; one of most interesting cases was with guy - having two toroids , with short circ common for both of them , and - luckily - just fact that they were antiphase connected on common mains cable , saved it from fire or something like that )
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Old 8th March 2013, 10:10 PM   #1719
NSP is offline NSP  Finland
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Zen Mod- Put a common screw through the transformer and casing is exactly what I'm going to do because the transformer that I ordered has a epoxy filled center and no metal in sight.
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Old 9th March 2013, 12:27 AM   #1720
coils is offline coils  United States
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Originally Posted by NSP View Post
Zen Mod- Put a common screw through the transformer and casing is exactly what I'm going to do because the transformer that I ordered has a epoxy filled center and no metal in sight.
Use a nylon screw, prevent the shorted turn.
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