[neonixie-l] 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread threeneurons
I went to the TRW swap meet on Saturday, and picked up a 866 mercury vapor rectifier. The thing has a 2.5V 5 amp filament. Good thing I had this large transformer in my stash with a 2.1V tap. Needed less than 50V to light it up, and get the emission up to get more than 50mA thru. Tube is rated

Re: [neonixie-l] 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread JohnK
Much UV leak out do you think? John K - Original Message - From: threeneurons To: neonixie-l@googlegroups.com Sent: Wednesday, May 29, 2013 7:03 PM Subject: [neonixie-l] 866 Mercury Vapor Rectifier as Novelty Lamp I went to the TRW swap meet on Saturday, and picked up a

Re: [neonixie-l] 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread Nick
On Wednesday, 29 May 2013 10:54:58 UTC+1, johnk wrote: Much UV leak out do you think You read my mind - I would have thought that this was a real (not imaginary) danger. Nearly all UV is absorbed by the front of your eyes, causing corneal damage, cataracts macular degeneration. I'd

Re: [neonixie-l] 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread Bob Armstrong
On Wednesday, May 29, 2013 2:54:58 AM UTC-7, johnk wrote: Much UV leak out do you think? Ordinary glass (i.e. the tube envelope) is opaque to UV. That's why UV lamps have to be made out of quartz. Don't break it, though! Bob -- You received this message because you are

Re: [neonixie-l] 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread Nick
UV covers a large wavelength range - from about 400nm to 10nm. It seems that anything shorter than 300nm is regarded as not good for human eyes and that normal soda glass absorbs a lot of that, leaving mostly UVA (long wavelength UV or NUV/near UV) as radiation external to the envelope -

Re: [neonixie-l] Digest for neonixie-l@googlegroups.com - 7 Messages in 2 Topics

2013-05-29 Thread westdave
westd...@aol.com I wonder if it is the right UV light for a mineral lamp (compared to that laser pen he carry's) surround it with rocks and see if there is any greenium inside them anyway the ticket here is to reflect the light off the rocks and see if there is any absorbed and then reflected

Re: [neonixie-l] 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread threeneurons
Any kind of filter I can stick on this thing to block the UV ? Tinted Acrylic ? Much UV leak out do you think? -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email

Re: [neonixie-l] Digest for neoni...@googlegroups.com - 7 Messages in 2 Topics

2013-05-29 Thread threeneurons
Okay, so you're not blind when you get vaporized !? in case of abomb hide behind glass this will help with the uv but not the blast 866 Mercury Vapor Rectifier as Novelty Lamphttp://groups.google.com/group/neonixie-l/t/395b5ce99fd3ed23 -- You received this message because you are

[neonixie-l] Re: 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread threeneurons
http://www.dailymotion.com/video/x10b9ux_866-rectifier-as-relax-osc-flashing-light_tech#.UaXI2tKXSSo Dave: I wonder if it is the right UV light for a mineral lamp (compared to that laser pen he carry's) Okay, we'll surround it with the rocks at Gary's house. That way we'll only get

Re: [neonixie-l] 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread JohnK
The small QI/Halogen downlight globes come/came in a couple of styles one with the small QI/Halogen lamp at the centre of the reflector and open at the front; the other had a glass plate across the mouth / front of the reflector. That glass is for UV reduction. Don't know if it is special

Re: [neonixie-l] 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread Grahame Marsh
On 29/05/2013 19:02, JohnK wrote: Much UV leak out do you think? ..clip.. Fo a go-no go test you might look to see if the UV is strong enough to illuminate anything with UV writing on it. UK currency notes and European passports carry invisible (to the eye) markings that

[neonixie-l] Re: 866 Mercury Vapor Rectifier as Novelty Lamp

2013-05-29 Thread dr pepper
Paint some of the white stuff on it from the inside of a fluorescent tube, and you'll have a complicated white light bulb. They made us wear safety glasses at my last place, they had a lot of welding bays, and claimed that clear polycarb safety glasses spread out the uv from a flash enough to