Hi Norman,
Thanks for checking this out. I think you are right and it probably
will work very well. I have contacted the seller for clarification as to
whether it is an HMV or Columbia diaphragm.
----- Original Message -----
From: "Norman Bruderhofer" <[email protected]>
To: "Antique Phonograph List" <phono-l at oldcrank.org>
Sent: Monday, September 08, 2008 3:09 PM
Subject: Re: [Phono-L] Need a Diaphragm for a Columbia Vivatonal Reproducer
> The pleats could be different. On the other hand I was also told
> about multiple designs that were implements over a very short time period.
>
> Here is a picture comparing an American Columbia diaphragm in a 15A
> reproducer to the discussed type:
>
> http://img389.imageshack.us/my.php?image=8905lx6.jpg
>
> There are no attachment areas for any spider on that diaphragm. It is
> just the inner (thicker) dome which is bent through the outer
> diaphragm and is sealed on three spots with a drop of wax. At least
> this one should play way better than any available reproduction.
>
> Norman
>
>
> At 19:21 08.09.2008, you wrote:
>>That might work but it is not a Vivatonal diaphragm. It looks like it has
>>more pleats than the Vivatonal and I think I see attachment areas for a
>>Spider.
>>
>>Ron L
>
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> http://phono-l.oldcrank.org
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