Another BCD thumbwheel encoder but with a twist... Enjoy!
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- Music by Fran Blanche -
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Join Team FranLab!!!! Become a patron and help support my YouTube Channel on Patreon: http://www.patreon.com/frantone
#franlab #tube #BCD
- Music by Fran Blanche -
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
I pulled apart a broken digital watch when I was a kid. It had the tiniest bulb I'd ever seen, maybe 1mm X 2mm. Of course it just had leads. But imagine glass blowing and the filament in there. ๐ฏ
Some GM backlight bulbs are that small, such as lighting for switches & radios. That is the older GM vehicles. My 2013 pickup has LED backlighting on all instruments, switches & radio/HVAC controls.
I'm surprised that the incandescent lamps were still being used as recently as the early 90s. The lime-green LED's were well established long before the 90s.
Still, you can't beat that classic incandescent glow.
1993? Huh. I wonder why they didn't use LEDs?
Are those โ387โ lamps, or smaller?
We used hundreds if not thousands of those in the seventies – notably in broadcast vision mixers.
A weekly task to go on patrol for blown lamps.
I had tiny coloured incandescent lightbulbs in some signalling posts for a HO scale model railway in the late 60s… Not sure what mount they had. Even in the model specialist store they were hard to come by… ๐ค
I was into HO model railroading in my youth, and "grain-o-wheat" bulbs were the thing.
For those curious, I looked it up, and ANVIS is short for Aviator's Night Vision Imaging System. Presumably it had a spec for exactly what green was suitable for night vision use.
Very beautiful) I have Soviet indicator who looks like this
I remember back in the 1980s during the Star Trek movies of building the Enterprise model, that if you wanted the interior of the ship to light up certain areas of the ship, you had to get these tiny light bulbs called "Grain of Wheat" Lightbulbs. These things were tiny – perhaps a bit larger than a large grain of rice, like a 1960's xmas tree light – the bulb with the two wires coming out of it.
Using various ttl/logic & timer circuits you can get sections of the model to light up. It was interesting but yet almost impossible to build as such parts were near inobtainable.
Nice !
ANVIS = Aeronautical Nighttime Visibility? maybe?? Just a guess, really neat that they made (make?) flange bulbs of this size! So tiny! It would be really silly to use these in place of LEDs for giggles. Love these videos! Thank you!
Wow! That lamp is very small, thanks for showing, this is the kind of show and tell things I like seeing you do.
It goes up to 29.9…..Barometer ? For altitude?
I think I might have a few of those bulbs. They remind me of the ones you find in old car radios (from the 90s).