[Phono-L] How to 'wax' a Victor Exhibition 2 soundbox?
Steven Medved
steve_noreen at msn.com
Fri Dec 11 14:51:42 PST 2009
Soldering iron, the idea of the wax is to make it airtight. I place the wax on top, heat the needle bar and the wax melts and wicks in.
The directions from Victor say you should have the needle bar barely touch the mica, but after I connect the screw I sound test and I have found if I adjust the bar slightly away from the mica the sound is better.
Like the copper diaphragms of Edison I have found that the mica diaphragm that has a high ring has a better sound than those with a dull ring. Those of use who are of age will remember if you take a sliver quarter and spin it and let it fall it has a higher ring than the copper/nickel ones. For those young ones take a penny before 1982 and compare it with a new one, the old copper one has a higher ring than the new copper plated zinc ones. The old used, delaminated mica does not have the same ring as quality mica. I say that because some of the new mica is not good and has a dull ring.
Any comments or corrections are welcome.
Steve
>
>
> To all you phono-phanatics more knowledgeable than I (pretty much all
> of you):
>
> I rebuilt an Exhibition 2 soundbox with new gaskets and a new
> diaphragm. What a difference! But I'm not sure I got the drop of wax
> in the right position on the screw and the diaphragm. If I understand
> what should happen it should not just ball up on the head of the
> screw, it should flow around the screw and onto the diaphragm. That
> way there's a good transfer of the vibrations. I don't think I have
> it right yet. How far onto the diaphragm should it flow? Any hints
> how to do it?
>
> If you have a good picture of how it should look, feel free to email
> one to met.
>
> Thanks you very much.
>
> David Barnett
>
> David Barnett David at FairLibertysCall.com
> 516-767-0675 www.FairLibertysCall.com
>
>
>
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