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Old 11th February 2012, 08:25 AM   #171
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One product that works is this:
Click the image to open in full size.
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Old 11th February 2012, 01:31 PM   #172
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Hi Few

Just buy aluminium solder from Farnell Farnell Export
For aluminium foil it works perfect.

Rob
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Old 11th February 2012, 03:24 PM   #173
Few is offline Few  United States
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Thanks jer, that's the one I remembered. Unfortunately I don't think it's applicable to thin foils. I fear the mechanical scrubbing step would beat them up too much.

I'm a bit lost with the Farnell link but figured I'd make yet another attempt to find a promising source of solder for aluminum. KappAloy9 popped up but I haven't yet found a way to buy it.

Is that conventional Ersin multicore? I would have thought it would have the same problems with the oxide as other electronic solders. No?
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Old 11th February 2012, 03:38 PM   #174
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I never use solder just a penny washer, works every time and lasts for years.
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Old 11th February 2012, 04:04 PM   #175
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Quote:
Originally Posted by Few View Post
Thanks jer, that's the one I remembered. Unfortunately I don't think it's applicable to thin foils. I fear the mechanical scrubbing step would beat them up too much.

I'm a bit lost with the Farnell link but figured I'd make yet another attempt to find a promising source of solder for aluminum. KappAloy9 popped up but I haven't yet found a way to buy it.

Is that conventional Ersin multicore? I would have thought it would have the same problems with the oxide as other electronic solders. No?

The multicore solder works like a charm on foil!
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Old 11th February 2012, 07:15 PM   #176
Few is offline Few  United States
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Quote:
The multicore solder works like a charm on foil!
Good to know. I'll give it a try. I can't quite tell from the photo you posted which variety of Ersin solder you've had success with. My searching suggests there are multiple varieties. Does it say anything that distinguishes it on the label?

Quote:
I never use solder just a penny washer, works every time and lasts for years.
I may be doing something closer to the Analysis Epsilon approach than running a single conductor over the whole diaphragm. I'd rather be able to make solder connections at the top and bottom of each conductor than rely on tons of mechanical connections.

Thanks, all.
Few

Last edited by Few; 11th February 2012 at 07:23 PM.
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Old 18th February 2012, 12:26 PM   #177
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I haven't got it right here at the moment but at my workshop.
But from one of our companies here in Sweden You get this information...
The major important thing here is the fluss in the core that is ERSIN 362.
https://www.elfa.se/elfa3~se_sv/elfa...738|4|466938,;
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Old 18th February 2012, 03:11 PM   #178
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Default next project headphones 2 designs

The blue ones are my latest rebuilds, 7.1 Ohms. Then headphones 2 layouts see which is the best!
Attached Images
File Type: jpg SAM_0180.JPG (781.0 KB, 263 views)
File Type: jpg SAM_0181.JPG (699.4 KB, 235 views)
File Type: jpg SAM_0176.JPG (937.8 KB, 240 views)
File Type: jpg SAM_0177.JPG (888.4 KB, 219 views)
File Type: jpg SAM_0178.JPG (871.6 KB, 58 views)
File Type: jpg SAM_0179.JPG (826.0 KB, 61 views)
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Old 16th March 2012, 12:50 AM   #179
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Default some more pics of rebuilds

A epsilon layout design using 5 separate layouts on 1 diaphragm, using 40 x 25 x 10 mm ferrites.
Attached Images
File Type: jpg SAM_0196.JPG (742.8 KB, 50 views)
File Type: jpg SAM_0197.JPG (766.2 KB, 34 views)
File Type: jpg SAM_0195.JPG (690.9 KB, 29 views)
File Type: jpg SAM_0198.JPG (711.5 KB, 29 views)
File Type: jpg SAM_0200.JPG (719.2 KB, 22 views)
File Type: jpg SAM_0201.JPG (745.7 KB, 24 views)
File Type: jpg SAM_0202.JPG (752.2 KB, 21 views)
File Type: jpg SAM_0203.JPG (767.7 KB, 44 views)
File Type: jpg SAM_0204.JPG (726.0 KB, 44 views)
File Type: jpg SAM_0205.JPG (769.4 KB, 50 views)
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Old 16th March 2012, 12:56 AM   #180
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Default some more rebuilds using neos.

A new rebuild using 50 x 12.7 x 3 mm neos should be good for sensitivity etc.
Attached Images
File Type: jpg SAM_0209.JPG (759.9 KB, 65 views)
File Type: jpg SAM_0211.JPG (775.6 KB, 55 views)
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