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Cir-Kit Concepts 22.5mW axial incandescent lamp

Cir-Kit Concepts 22.5mW axial incandescent lamp

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Not only is this the smallest lamp in my collection, it is one of the smallest lamps ever manufactured at around 30 mils in diameter and around 120 mils long. Despite this, they are around $2 to $4 each depending on the source and quantity.

The main use for these is lighting miniature models judging by the vendor.

VL 150W north light - Copy.jpg GEC PAR38 120W 240V - Copy.jpg IMG_3565 - Copy.JPG IMG_3559 - Copy.JPG

Light Information

Light Information

Manufacturer:Cir-Kit Concepts
Lamp
Lamp Type:incandescent
Filament/Radiator Type:do not have a good enough microscope to see
Base:wire leads
Shape/Finish:T0.25
Electrical
Wattage:22.5mW
Voltage:1.5V
Current:15mA
Optical
Lumen Output:few millilumens
Lumen Efficacy:not great
Physical/Production
Fabrication Date:1990s to 2010s

File information

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Album name:randacnam7321 / Incandescent Lamps
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Date added:Feb 05, 2018
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Comments
WestinghouseCeramalux
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Vintage HID Collector


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Feb 05, 2018 at 09:59 AM Author: WestinghouseCeramalux
What's the application for this kind of lamp?

A man has two lives to live, and the second one begins when he realizes he only has one.

Lodge
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18W Goldeye / 52W R&C LED front door lighting


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Feb 05, 2018 at 10:47 AM Author: Lodge

What's the application for this kind of lamp?


Edge lighting LCD panels in older watches, and lighting small meters are about the only things I can think of and maybe using them in toys that haven't been LED'ed yet..

But they are a neat tiny light..
rjluna2
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Robert


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Feb 05, 2018 at 11:01 AM Author: rjluna2
Nice

I have Windert LCD Watch with this tiny bulb fitted in.

I also brought Utah Pacific Light Bulb new about 30 years ago and here is Utah Pacific Light Bulb in Action

Pretty, please no more Chinese failure.

Lodge
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18W Goldeye / 52W R&C LED front door lighting


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Feb 05, 2018 at 12:36 PM Author: Lodge
randacnam7321 just throwing this out there, you said you don't have a microscope, you don't need one for this light, if you have a flat bed scanner like those found on cheap multi-function printers just lay it on the bed and scan it, I know it sounds crazy but really scanners do a nice job generating a photo of tiny items.. And if you find the older ones using the cold cathode lighting they are able to scan anything with in about twelve inches of the bed, the LED illuminated ones are only good for an inch or two...

And then do a high res scan cut it and zoom in and I bet you could see the coils on the filament..



Here is a flatbed scan of a 27C512 Eprom just to give you an example (this photo is highly compressed I did it back in the day when all I had was 14,400 Dial up the original which is about 1 Gig in size you can see the eprom circuits)
And this a picture of Venus flytraps so you can see they are able to scan at distance as well
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