[Phono-L] Need a Diaphragm for a Columbia Vivatonal Reproducer

[Ron L]

Neither of these look like the diaphragm on a Vivatonal 601 type machine.

Ron L

-----Original Message-----
From: phono-l-bounces at oldcrank.org [mailto:phono-l-bounces at oldcrank.org] On
Behalf Of Norman Bruderhofer
Sent: Monday, September 08, 2008 3:10 PM
To: Antique Phonograph List
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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