Naked 3pcs.80x40x8,5mm.
Dressed.
Better res.on my gallery :http://www.diyaudio.com/forums/gallery/showgallery.php/cat/500/ppuser/94838
Bernt
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Bernt, in the wee moments before waking this morning the answer hit me! 
DOW CORNING® 3-1965 CONFORMAL COATING
Caution!!! Please read the MSDS first and heed the warnings. This is not your typical chemical to play with.
DOW CORNING® 3-1965 CONFORMAL COATING
Caution!!! Please read the MSDS first and heed the warnings. This is not your typical chemical to play with.
Yes a liquid, but of a medium viscosity. Once cured is soft and semi flexible unlike most conformal coatings. Should not be to difficult to work with. Have had this on my short list of materials as it exhibits good dampening properties. Would not suggest it's use on porous materials unless willing to sacrifice. On films can be peeled off and redone.
Only time I've used for this purpose was on some JBL Pro titanium dome tweeters to quench the inherent ringing back in the early '90's before I stopped designing speakers. One of my little secrets
Only time I've used for this purpose was on some JBL Pro titanium dome tweeters to quench the inherent ringing back in the early '90's before I stopped designing speakers. One of my little secrets
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Not sure what y'all are thinking about using it for, but....
Conformal coating - Wikipedia, the free encyclopedia
The 'wiki' indicates it can be brush applied, but it sounds like the stuff doesn't 'flow' like paint. Perhaps more like rubber cement, unless it could be thinned with who knows what. And I agree with Greebster...doesn't sound 'user friendlly'.
Conformal coating - Wikipedia, the free encyclopedia
The 'wiki' indicates it can be brush applied, but it sounds like the stuff doesn't 'flow' like paint. Perhaps more like rubber cement, unless it could be thinned with who knows what. And I agree with Greebster...doesn't sound 'user friendlly'.
In this case I would ignore "wiki" as it is too generic and limited in scope. It is not found on the shelf of any retailer as it is a commercial only product. I have extensively used for a number of years and would never suggest it's use to Joe Public EVER! In this case I am suggesting it's use as the level of professionalism is high enough to warrent it's safe use. Nor would I suggest it's use if I had no experience with the compound or it's application here.
Regards, Mike
Regards, Mike
I have measured some amt's.
Using LIMP program to get T/S parameters.
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This one could not be analysed for Q values.I think it is too Little differens betweene R min.and R max.
Res freq 190hz.Week field. Diaphragm 9mm.
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This is the same diaphragm in a stronger magnet field (kitharo).
F res 198 Qt 4,74.
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This is a thinner diaphragm 7mm
Fres 390 Hz. Qt 5,38 (kithara)
Bernt
Using LIMP program to get T/S parameters.
This one could not be analysed for Q values.I think it is too Little differens betweene R min.and R max.
Res freq 190hz.Week field. Diaphragm 9mm.
This is the same diaphragm in a stronger magnet field (kitharo).
F res 198 Qt 4,74.
This is a thinner diaphragm 7mm
Fres 390 Hz. Qt 5,38 (kithara)
Bernt
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Magnets are 25x25x10mm Neo.
Height of system is 150mm.
Total Width is 90mm.
Total depth is 40mm 2x 15mm.steel+10mm magnet.
Made for diaphragm 8x40x160mm.
Field is app. 0,5T.
Magnets are pressed in place. Aluplates at the ends to hold them .
3x15mm alu used for spacing and "horn"
Bernt
Wow, I go away for awhile and the guy makes a quantum leap forward! *G*
Very nice assembly; the 'horn' shape is a interesting variant on what the 'lens' typically are. I hope it works in reality as theory indicates, as it couldn't have been easy to make it 'taper' top to bottom as evenly as it appears....
Big, too. Contrasted to that mouse for scale, might be among one of largest I've seen.
Hammer hands here is impressed.
Very nice assembly; the 'horn' shape is a interesting variant on what the 'lens' typically are. I hope it works in reality as theory indicates, as it couldn't have been easy to make it 'taper' top to bottom as evenly as it appears....
Big, too. Contrasted to that mouse for scale, might be among one of largest I've seen.
Hammer hands here is impressed.
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