WTB: Aluminum Foil For Ribbon Build

valveitude · 5th July 2007, 05:33 PM

I have sourced everything I need for this project, except the foil. I am looking for some foil 6-8 micron thick, and at least .7" wide (I can cut down wider). My ribbons will be 60" long, so after pleating, I figure I will need 72" per speaker, plus enough to roach a few..so about 50 ft I guess as a minimum.

If anybody has some they are willing to let go, or know where I can purchase less than 10lb.'s (the min the wholesalers sell), please contact me here, or via email in my profile.

Thanx,
Casey

sqlkev · 5th July 2007, 10:11 PM

I want in on some too

Cloth Ears · 5th July 2007, 10:34 PM

These were built using standard (heavy duty) aluminium foil laminated to 12 micron mylar film. Nothing special required...

valveitude · 5th July 2007, 11:34 PM

Quote:

These were built using standard (heavy duty) aluminium foil laminated to 12 micron mylar film. Nothing special required...

True..any foil will work..to a degree, BUT, the efficiency suffers terribly with the thicker foils. After modeling my options till my eyes crossed, I have decided that 8 micron is as thick as I want to go..this will give me 98 dB/W with my magnet assembly, allowing me to drive them with a small triode SE amp.

Casey

Cloth Ears · 6th July 2007, 12:16 AM

I understand. These are driven by a 40W A-40 (Pass) Class A, down to 500Hz crossover point. And they are not very efficient.

Have you tried contacting LineSource (see this post)? Or Paul W from this one? You've already had some posts in that thread, but may have missed this (and it's already 2 years old).

valveitude · 6th July 2007, 12:30 AM

Actually, it was (is) my hope that either LineSource, or Paul W sees this post. Both members have there forum email turned off, and I have no way of contacting them.

If anybody that sees this has a way of pointing either of them at this post, it would be greatly appreciated.

Casey

Cloth Ears · 6th July 2007, 01:59 AM

You could always try one of those "Attn: LineSource or Paul W" threads in the Loudspeaker forum, where they are still active. And post the question there...

Good Luck...

Whew! Nice post!

tom1356 · 6th July 2007, 02:03 AM

You want to unravel a film / foil capacitor of appropriate size and use the foil.
Good Luck!

valveitude · 6th July 2007, 02:21 AM

Cloth Ears-

Quote:

You could always try one of those "Attn: LineSource or Paul W" threads in the Loudspeaker forum, where they are still active. And post the question there...

If nothing comes my way in a few days, I'll probably do just that.

tom1356-

Quote:

You want to unravel a film / foil capacitor of appropriate size and use the foil.

That would be plan "B". I already have some suitable caps, but if I can avoid that particular chore, I will.

Casey

5th July 2007, 05:33 PM	#1
valveitude diyAudio Member Join Date: Apr 2005 Location: Naches,WA	WTB: Aluminum Foil For Ribbon Build I have sourced everything I need for this project, except the foil. I am looking for some foil 6-8 micron thick, and at least .7" wide (I can cut down wider). My ribbons will be 60" long, so after pleating, I figure I will need 72" per speaker, plus enough to roach a few..so about 50 ft I guess as a minimum. If anybody has some they are willing to let go, or know where I can purchase less than 10lb.'s (the min the wholesalers sell), please contact me here, or via email in my profile. Thanx, Casey __________________ Experience is a wonderful thing. It enables you to recognize a mistake when you make it again.

5th July 2007, 10:34 PM	#3
Cloth Ears diyAudio Member Join Date: Dec 2001 Location: Melbourne, Australia	These were built using standard (heavy duty) aluminium foil laminated to 12 micron mylar film. Nothing special required... __________________ Jont. "It is impossible to build a fool proof system; because fools are so ingenious."

6th July 2007, 12:16 AM	#5
Cloth Ears diyAudio Member Join Date: Dec 2001 Location: Melbourne, Australia	I understand. These are driven by a 40W A-40 (Pass) Class A, down to 500Hz crossover point. And they are not very efficient. Have you tried contacting LineSource (see this post)? Or Paul W from this one? You've already had some posts in that thread, but may have missed this (and it's already 2 years old). __________________ Jont. "It is impossible to build a fool proof system; because fools are so ingenious."

6th July 2007, 12:30 AM	#6
valveitude diyAudio Member Join Date: Apr 2005 Location: Naches,WA	Actually, it was (is) my hope that either LineSource, or Paul W sees this post. Both members have there forum email turned off, and I have no way of contacting them. If anybody that sees this has a way of pointing either of them at this post, it would be greatly appreciated. Casey __________________ Experience is a wonderful thing. It enables you to recognize a mistake when you make it again.

6th July 2007, 01:59 AM	#7
Cloth Ears diyAudio Member Join Date: Dec 2001 Location: Melbourne, Australia	You could always try one of those "Attn: LineSource or Paul W" threads in the Loudspeaker forum, where they are still active. And post the question there... Good Luck... Whew! Nice post! __________________ Jont. "It is impossible to build a fool proof system; because fools are so ingenious."


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5th July 2007, 10:11 PM	#2
sqlkev diyAudio Member Join Date: Mar 2004 Location: 714	I want in on some too

6th July 2007, 02:03 AM	#8
tom1356 diyAudio Member Join Date: Mar 2002 Location: boston	You want to unravel a film / foil capacitor of appropriate size and use the foil. Good Luck! __________________ My "cult-like" following is accepting applications.

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