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From: AM on 9 Jul 2010 06:26
On Fri, 09 Jul 2010 02:24:18 -0700, Robert Baer <robertbaer(a)localnet.com>
wrote:

>AM wrote:
>> On Thu, 08 Jul 2010 11:42:36 -0700, Robert Baer <robertbaer(a)localnet.com>
>> wrote:
>>
>>> Lemme see: take the sound of a tuba or cello; SINGLE source, NOT
>>> sound spectrum broken up into "segments".
>>
>>
>> Yes, but the discussion is about how WE reproduce them, and in such
>> cases, with our primitive (to a tuba) transducers, we most certainly do
>> break it up into bands that satisfy the physical limitations of the
>> transducer designs we use for each of those bands.
>>
>> Try again. You lost that one, and nobody lied about a goddamned thing.
> Have you tried a plasma speaker (hiss suitably muffled)?


No, but I have a couple of flat panel jobs.

I still remember when that (flat) was new technology back in the mid
seventies, and only one maker had/made them.

I saw some odd 'Tesla' hardware looking speakers in the high end
magazines that were almost all the way up to the ceiling, and it looked
like a cone shaped thingy (that's what *she* said). :-)
From: John on 9 Jul 2010 17:19
On Thu, 08 Jul 2010 18:14:38 -0500, legg <legg(a)nospam.magma.ca> wrote:

>On Thu, 08 Jul 2010 10:44:51 -0400, John <Ya(a)you.com> wrote:
>
>>I am repairing two 15" Tannoys of the Gold series. A $5k unit if we
>>could get them.
>>
>>Un oscillation in a cassette deck I was using, produced a very lowed
>>sound that damaged the speakers.
>>
>>One of them has 6 turns of the voice coil, lose and can be glued back.
>>
>>On the old days I used to repair speakers using the same type of glue
>>that was used on the assembling of models. A type of glue that use
>>acetone as a solvent.
>>Today we have better types of glue like epoxy and I believe the harder
>>the glue the better the performance, the disadvantage is that using
>>epoxy will make a future repair very difficult.
>>
>>Any suggestions ?
>>
>>The coil on the second speaker is open and in very bad shape. I am
>>looking for a replacement.
>>
>>Tannoy does not carry parts for this type of speaker but there is a
>>place in England that will sell me a cone assembly for about $300 usd.
>>
>>J.
>Suggest you send out the original, to ensure that the replacement is a
>proper fit. Sounds reasonable to me, considering western hemisphere
>costs and your original investment.
>
>RL

I starting by calling Tannoy that reply the following:

"We don't have the kit but you may get it from company x. Then send
the complete assembly to the closest Tannoy service center (200 miles
from my residence) and we will do the reconing.
We don't recommend changing the coil."

The installation of the kit is easy. It is self center and it doesn't
have play adjustments.

In order to do a god job, I should order 2 cone kits from England but
the total cost including transportation, duty an taxes will be more
than $1k.

The speaker with less damage has about 6 turns dislocated as a group
from the rest of the coil that looks solid.
I am going to read again your recommendations about the glue, paint
the 2" tube with that glue and slide the 6 turns group into their
previous position.

If this works I may try to rewind the other coil "fat chance"

Then I may order one or two kits from England and do the reconing
myself.

Thanks for all your help.

John
From: JosephKK on 10 Jul 2010 09:12
On Thu, 08 Jul 2010 10:44:51 -0400, John <Ya(a)you.com> wrote:

>I am repairing two 15" Tannoys of the Gold series. A $5k unit if we
>could get them.
>
>Un oscillation in a cassette deck I was using, produced a very lowed
>sound that damaged the speakers.
>
>One of them has 6 turns of the voice coil, lose and can be glued back.
>
>On the old days I used to repair speakers using the same type of glue
>that was used on the assembling of models. A type of glue that use
>acetone as a solvent.
>Today we have better types of glue like epoxy and I believe the harder
>the glue the better the performance, the disadvantage is that using
>epoxy will make a future repair very difficult.
>
>Any suggestions ?
>
>The coil on the second speaker is open and in very bad shape. I am
>looking for a replacement.
>
>Tannoy does not carry parts for this type of speaker but there is a
>place in England that will sell me a cone assembly for about $300 usd.
>
>J.

If the cone assembly includes the voice coil that is a pretty good deal,
i might even buy extras. Since you have done this kind of thing before i
presume that you have the tools.

You could probably find stronger adhesives that are still repairable, but
i bet they will be rather expensive and may be shipped frozen (with
months limited shelf life, and just minutes pot life).
From: Copacetic on 10 Jul 2010 10:30
On Sat, 10 Jul 2010 06:12:13 -0700, "JosephKK"<quiettechblue(a)yahoo.com>
wrote:

>You could probably find stronger adhesives that are still repairable, but
>i bet they will be rather expensive and may be shipped frozen (with
>months limited shelf life, and just minutes pot life).

Your outlook on everything is so obviously bent toward pessimism.
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