I have five of these horns right now as well as four more on two cars. I don't
know if the armature is different, but I have not noticed any difference in
colour with the diaphgram. The difference in diaphragm is that one has one "V"
cut on the edge while the other has two"V V" cut in it, which one is low tone
and which one is high tone that I am not sure. I actually have a couple of
these horns right now for repairs at British Part Restoration in Medfield ,
Ma, by Lawrie Rhoads. He may be a good source to answer your question further.
I have sanded a few tone discs and can't say if they are magnesium or not.
Jean
> Date: Sun, 29 Sep 2013 20:51:00 -0400
> From: rchaskell@earthlink.net
> To: Healeys@autox.team.net
> Subject: Re: [Healeys] Is this still the Healey list I have joint many years
ago?
>
> Okay, here's a question in memory of Rich and for Joesf ...
>
> The horns fitted to the 100, 100-6 and 3000 MkI were the Lucas HF1478
> model. One low tone (70063 or 069448) and one high tone (70071 or
> 069474). The parts for the two are the same except for the diaphragm
> and armature assembly. I believe that the high tone diaphragm was
> painted black and the low tone had the same polychromatic grey that the
> rest of the horn was painted. Anyone confirm / disprove?
>
> BTW, the tone disk is magnesium.
>
> Cheers,
>
> Bob Haskell
> AHCA 3000 Mk I registrar
> http://www.ciahc.org/registry_3000mk1.php
>
> On 09/29/2013 08:17 AM, josef-eckert@t-online.de wrote:
> > Is this still the Healey list I have joint many years ago?
> >
> > I have to say since Rich Chrysler left us so sadly and other well
> > known distributers disappeared I have the feeling I am in a different
> > club here.
> >
> > To my feelings the quality of the postings in this list went down
> > dramatically. I really loved these technical discussions we had in
> > former times. Nowadays we have to read about where to get thermostat
> > housing gaskets. Weird Ebay postings, displaced cylinder heads -
> > perhaps this is a dementia issue.
> >
> > Or more than 20 postings just to congratulate when an engine was
> > fired up.
> >
> > Sorry I miss the old list.
> >
> > Josef Eckert
> >
> > Konigswinter/Germany
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