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Old 03-25-2012, 11:41 PM
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mercury vapor tube



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If any of you have ever replaced a light like this and noticed the "element" is a piece of glasslike material held in place by 2 connectors (its approx 2 1/2"long). This element will put the "finishing edge on any knife ive ever attempted to do. It makes it almost scaple (sp?) like.......very impressive
Ive been using one for more than 10 yrs and its what i put the final polish on the blade with.......just some FYI
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Old 03-26-2012, 05:23 PM
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I have used them as a touch up hone.Works great.
James
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Old 05-22-2018, 08:34 PM
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My late father in-law turned me on to those years ago. They work very well! Carry one in my pocket all the time.
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Old 06-09-2018, 05:09 PM
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As a maintenance electrician in a huge manufacturing plant, I replaced hundreds of those MV lamps. There were always guys with their hands out for the element!
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Old 06-09-2018, 05:17 PM
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I don't know the specifics, but it's a MERCURY vapor lamp. Means there is some mercury in it somewhere. Be safe.
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Old 06-09-2018, 06:33 PM
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Gotta find me one of those
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Old 06-09-2018, 08:28 PM
darkdave.32
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Quote:
Originally Posted by .30 HART View Post
If any of you have ever replaced a light like this and noticed the "element" is a piece of glasslike material held in place by 2 connectors (its approx 2 1/2"long). This element will put the "finishing edge on any knife ive ever attempted to do. It makes it almost scaple (sp?) like.......very impressive
Ive been using one for more than 10 yrs and its what i put the final polish on the blade with.......just some FYI
Not real sure what you are refering too, could you post a photo or a link.
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Old 06-14-2018, 06:56 PM
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Is it the Quartz element ?
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Old 06-14-2018, 09:20 PM
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Originally Posted by bearcatter View Post
I don't know the specifics, but it's a MERCURY vapor lamp. Means there is some mercury in it somewhere. Be safe.
They are approximately the equivalrnt of 2000 grit. Really do a nice job of maintaining an edge.
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Old 06-19-2019, 09:06 AM
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Those tubes are made of polycrystalline alumina. They are used in mercury vapor and high pressure sodium lamps. They are close to sapphire in composition. You can buy a 1/4”dia solid rod 12”long from McMaster for $27. A lot of the cheap knife sharpeners use alumina rods which is one step below these. I have a 3/8 alumina rod that I have been using for35 years to finish when I sharpen kitchen knives.
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