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22nd October 2005, 10:48 PM
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#1 |
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diyAudio Member
Join Date: Jun 2002
Location: Victoria, BC, Canada
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Vintage Isophon Problem
I have found some really nice two way axial isophone 6 X 12 speakers in cabinets at the thrift store. They look like really nice dirvers but the voice coils in the mid bass drivers are separating from the formers. Does anyone have any suggestions for taking these apart and glueing the coils back on???
I'm thinking of using acetone to dismount the cones and spiders and then using a strong and light cement to glaze over the coils to hold them still and then glueing the cones and spiders back into place. I think Planet10 must know something about these speakers...
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. -- -- http://www.w1ngselectronics.com -- My Work and Projects -- |
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23rd October 2005, 12:51 AM
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#2 |
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diyAudio Member
Join Date: Jun 2002
Location: Victoria, BC, Canada
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I found some pictures of this model on the net.
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. -- -- http://www.w1ngselectronics.com -- My Work and Projects -- |
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23rd October 2005, 12:52 AM
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#3 |
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diyAudio Member
Join Date: Jun 2002
Location: Victoria, BC, Canada
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Another
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. -- -- http://www.w1ngselectronics.com -- My Work and Projects -- |
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23rd October 2005, 12:59 AM
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#4 |
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diyAudio Member
Join Date: Feb 2004
Location: UK
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They do indeed look like nice drivers.
Hope you get them sorted. |
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23rd October 2005, 01:16 AM
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#5 |
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diyAudio Member
Join Date: Jun 2002
Location: Victoria, BC, Canada
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yeah, me too. Unfortunately one of them grinds more than I first noticed. It's quite possible that the previous owner simply overdrove them badly and melted the coils.
Luckily the DC resistance of the coils is in check: 3.2 ohms an the midbasses and 4.6 ohms on the tweeters. At least the coils haven't been roasted...
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. -- -- http://www.w1ngselectronics.com -- My Work and Projects -- |
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24th October 2005, 02:08 AM
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#6 |
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diyAudio Member
Join Date: Jun 2002
Location: Victoria, BC, Canada
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Can anyone help me an this?
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. -- -- http://www.w1ngselectronics.com -- My Work and Projects -- |
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25th October 2005, 05:15 AM
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#7 |
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diyAudio Member
Join Date: Jun 2002
Location: Victoria, BC, Canada
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Hello? Anyone? planet10???? I know you're good with this stuff.
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. -- -- http://www.w1ngselectronics.com -- My Work and Projects -- |
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26th October 2005, 06:28 AM
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#8 |
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diyAudio Member
Join Date: Jun 2002
Location: Victoria, BC, Canada
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Well, the first one is working now. It was very difficult as I had to re-wind a portion of the coil and re-align the entire setup. After five hours of work I have a working driver.
It sounds really good.
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. -- -- http://www.w1ngselectronics.com -- My Work and Projects -- |
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6th November 2005, 12:35 AM
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#9 |
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diyAudio Member
Join Date: Jun 2002
Location: Victoria, BC, Canada
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Okay, I have both mid-basses working beautifully now but I have realized upon close listening that one of the tweeters has a problem.
It sounds like it has a loose voice coil too but it could be something elso like a detaching VC bobbin. Any ideas anyone?
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. -- -- http://www.w1ngselectronics.com -- My Work and Projects -- |
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