Colorful neons

Nicholas Stock

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Mar 27, 2021, 1:30:57 PM3/27/21

to 'Greg P' via neonixie-l

I noted some blue and green neons being sold on the bay..

https://www.ebay.com/itm/20X-4MM-13MM-F4-4-Blue-Night-Light-Neon-BL-Indicator-Lamp-Bulb-220V-20PCS-a-lot/313153340144?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D231410%26meid%3De1df92a6f5cf42ec9efd9c81d7f602f5%26pid%3D101195%26rk%3D3%26rkt%3D12%26mehot%3Dpf%26sd%3D313153375327%26itm%3D313153340144%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWebWithBBEV2bDarwoXgbV1&_trksid=p2047675.c101195.m1851

These have come up in discussion before and have been a little unobtainable....not my listing etc. etc...just an FYI.

Cheers,

Nick

Yohan Park

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Mar 28, 2021, 6:40:43 AM3/28/21

to neonixie-l

Thanks for posting but these are quite common and can be ordered fairly cheap on AliExpress.
https://www.aliexpress.com/item/4001202773443.html

Nicholas Stock

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Mar 28, 2021, 11:04:44 AM3/28/21

to neoni...@googlegroups.com

Roger that.

I don't use Aliexpress anymore.

Cheers,

Sent from my iPhone

On Mar 28, 2021, at 03:40, Yohan Park <w...@kitsunegari.net> wrote:

Thanks for posting but these are quite common and can be ordered fairly cheap on AliExpress.

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gregebert

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Mar 28, 2021, 4:37:48 PM3/28/21

to neonixie-l

I purchased a case of 1000 green neon bulbs several years ago; the shipping charges were about 90 USD and the bulbs around 60USD which worked to about 15 cents each. I didn't need all of them so I sold a few lots to folks in this group to help offset some of the cost.

Adrian Godwin

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Mar 28, 2021, 5:06:05 PM3/28/21

to neonixie-l

Big Clive mentioned these in a youtube video recently. Although the colour is obviously due to the phosphor, he was unsure whether the gas is actually neon. Mercury vapour would seem to be more useful to excite the phosphor and it's hard to see an orange glow (though that may be because of the bright phosphor).

Does anyone know for sure ?

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Mac Doktor

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Mar 29, 2021, 1:03:47 AM3/29/21

to neonixie-l

On Mar 28, 2021, at 5:05 PM, Adrian Godwin <artg...@gmail.com> wrote:

Big Clive mentioned these in a youtube video recently. Although the colour is obviously due to the phosphor, he was unsure whether the gas is actually neon. Mercury vapour would seem to be more useful to excite the phosphor and it's hard to see an orange glow (though that may be because of the bright phosphor).

Does anyone know for sure ?

Don't quote me on this. It's just off the top of my head...

The green ones are neon. It's a phosphor that fluoresces from wavelengths around 600nm up where neon has strong lines. For other colors "neon" signs use argon-mercury and other phosphors.

IIRC, Hg vapor has a strong line at 365nm which is UV-B.

I went to neon school. Almost exactly twenty years ago, now that I think about it. I can't remember how much I've forgotten.

Terry Bowman, KA4HJH
"The Mac Doctor"

https://www.astarcloseup.com/

“...the book said something astonishing, a very big thought. The stars, it said, were suns but very far away. The Sun was a star but close up.”—Carl Sagan, "The Backbone Of Night", Cosmos, 1980

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