silver foil caps for ribbon membrane - Page 2 - diyAudio
Go Back   Home > Forums > Loudspeakers > Planars & Exotics

Planars & Exotics ESL's, planars, and alternative technologies

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 19th March 2011, 11:09 AM   #11
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
Hmmm, bad report.
Still searching. jer

Neodymium Pricing Notice - Master Magnetics, Inc.
  Reply With Quote
Old 19th March 2011, 11:20 AM   #12
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
as you can see these cost twice as much. jer

K&J Magnetics - Products


http://www.kjmagnetics.com/proddetail.asp?prod=BC64
  Reply With Quote
Old 19th March 2011, 11:28 AM   #13
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
this price seems reasonable?
not sure yet $1 per square inch.

products_id_21 | Rare Earth Magnets 1/2 in x 1/2 in x 1/8 in Neodymium Block N42 - Applied Magnets & WindMax Wind Turbines

Last edited by geraldfryjr; 19th March 2011 at 11:31 AM.
  Reply With Quote
Old 19th March 2011, 11:37 AM   #14
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
another one

Magnets : United Nuclear , Scientific Equipment & Supplies

How about some of these!

Super Magnets : United Nuclear , Scientific Equipment & Supplies

Last edited by geraldfryjr; 19th March 2011 at 12:03 PM.
  Reply With Quote
Old 19th March 2011, 11:42 AM   #15
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
$2.50 per square inch.

MAGCRAFT® - Rare Earth Magnet - Block, 2 in. Long x 0.5 in. Wide x 0.125 in. Thick, 4-Count



http://www.amazingmagnets.com/sf-pla...e=25&pagenum=1


maybe I paid more,it has been a while.

http://www.radioshack.com/product/in...howFullReviews

Last edited by geraldfryjr; 19th March 2011 at 11:53 AM.
  Reply With Quote
Old 19th March 2011, 12:02 PM   #16
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
looks like a good deal right?
how about $3.50 per square inch although they are .2" thick instead of .125".


$14.40 - Super-Strong Rare-Earth Square RE Magnets (100-Pack) - Rare Earth/RE Magnets
  Reply With Quote
Old 19th March 2011, 12:51 PM   #17
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
these look like a good deal

Neodymium*Magnets*N42*1"x1/2"x1/8"*NdFeB*Rare*Earth*Magnets :: 1/2"*<...


I guess the next thing is to determine what your requirements will be and go from there.

I thought I saved the link to the custom manufacture, when I find it again I will post it. jer
  Reply With Quote
Old 19th March 2011, 01:17 PM   #18
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
here some calculators.
there are also I few on magnet web sites aswell.
The eculator and magnetic solutions are very extreme and are free of course.
I have more I just have to locate them. jer

Clemson Vehicular Electronics Laboratory: Circuit Board Trace Resistance Calculator

Force on a current carrying conductor Calculator - Eculator

Graphs of Magnetic Flux Density - Online calculator from Australian Magnetic Solutions

Magnetic Field Units - Conversion Calculator and Formulas

Inside Transformers
  Reply With Quote
Old 19th March 2011, 10:34 PM   #19
diyAudio Member
 
Join Date: Oct 2007
Location: melbourne
hi jer
it seems you have been busy

the best price i could do for magnets is find the longest ones i could get that were still ok to handle ,which seemed to work best with price seeing as most ribbon designs are longer rather than wider

if your making a planar then it would be different
here is the ones i,m using
these
Neodymium*Magnet*N45*2x1x1/4"*NdFeB*Rare*Earth*Rectangle...
or these
Neodymium*Magnets*N42,*4"x1"x1/2"*NdFeB*Rare*Earth*Magnets :: 1.0"*<...

the second ones maybe would be too hard to work with

regards sheafer
  Reply With Quote
Old 19th March 2011, 10:49 PM   #20
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
Cool, I couldn't find my big bigger stack today but I took pics of the ribbon that took out my bass amp (ampeg v4b) when I tied it to the 2 ohm tap (winding) and got crazy with it.
Attached Images
File Type: jpg THE INFAMOUS SADIE.jpg (72.1 KB, 77 views)
File Type: jpg THE RIBBON THAT TOOK OUT THE AMPEG V4b on 2 ohms.jpg (81.7 KB, 76 views)
File Type: jpg I NEED TOO CLEAN THE DEASK.jpg (66.7 KB, 75 views)
File Type: jpg ANOTHER VIEW.jpg (497.8 KB, 76 views)
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Silver Foil Paper in Oil Caps precisioncaps Vendor's Bazaar 0 11th March 2007 02:12 PM
Bonding silver foil to PTFE Nixie Everything Else 29 20th January 2007 09:54 PM
Looking for Ribbon foil SQFan Planars & Exotics 5 14th July 2006 07:43 AM
Mundorf Silver-oil VS Jensen copper foil 100db Tubes / Valves 24 5th March 2006 02:12 AM


New To Site? Need Help?

All times are GMT. The time now is 10:16 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2