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Re: Masonlite Electrodes

Posted By: SVP Neon Equipment
Date: Wednesday, 13 December 2006, at 8:27 p.m.

In Response To: Re: Masonlite Electrodes (Chris S.)


> Didn't mean to sound defensive--just coming
> off four straight days of 15mm ruby-grr!

Ah, 15mm ruby. Gotta love it! LOL

> You're right about Masonlite putting the
> mica in to satisfy US customers. I also
> heard that from a Masonlite rep at a NESA
> seminar back in 1990.

Do you remember who the rep was? Just curious.

> Just one other point: all mica will
> eventually succumb to the beating it takes
> from the arc stream in a tube. You often
> find that fine graphite-like powder that
> used to be the mica sleeve in a clear tube
> that has sputtered. It can spread throughout
> the tube creating a bunch of hot spots and
> star checks and render the tube
> unrepairable. I guess that's also a reason
> why I'm not a big fan of mica in an
> electrode.

Are you sure it's the mica? I have seen electrodes without any mica produce the same result, and I have seen Masonlite electrodes with the discs be literally eaten in half from sputtering and the mica disc was still intact. The graphite-like powder for the most part is disintegrated metal (iron and nickel plating) combined with the carbonized emission coating

> Have a happy holiday season! Chris.

Thank you, and I hope you do too!

Mark


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