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Semiconductor Lifeline Keeps Fighter Jets in the Air

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21–25 of 25 posts

Re: Semiconductor Lifeline Keeps Fighter Jets in the Air

#21

Earlier quoted context omitted.

I was under the impression that you could purchase cheap newly manufactured CRTs on alibaba. I only know this because someone published an unrelated project that repurposed the electron gun and associated internals.

> I was under the impression that you could purchase cheap newly manufactured CRTs on alibaba. Good luck selling that to the DOD.

I think the point was that if they are available from alibaba then you can get one without having to be the DOD.

Re: Semiconductor Lifeline Keeps Fighter Jets in the Air

#22
post #10

Earlier quoted context omitted.

There's also like one company still manufacturing CRTs, and their market is exclusively military and heavy-industrial, replacements for old fighter-jet HUDs and the like: https://www.thomaselectronics.com/avionics/head-up-display/ I'm sure there's at least one wealthy Smash Bros. enthusiast willing to pay their asking price and hook up one of their HUDs to a Gamecube to play Melee though.

I was under the impression that you could purchase cheap newly manufactured CRTs on alibaba. I only know this because someone published an unrelated project that repurposed the electron gun and associated internals.

Please provide a link!

Re: Semiconductor Lifeline Keeps Fighter Jets in the Air

#23
post #10

Earlier quoted context omitted.

There's also like one company still manufacturing CRTs, and their market is exclusively military and heavy-industrial, replacements for old fighter-jet HUDs and the like: https://www.thomaselectronics.com/avionics/head-up-display/ I'm sure there's at least one wealthy Smash Bros. enthusiast willing to pay their asking price and hook up one of their HUDs to a Gamecube to play Melee though.

I was under the impression that you could purchase cheap newly manufactured CRTs on alibaba. I only know this because someone published an unrelated project that repurposed the electron gun and associated internals.

Closest I could find is a new-old-stock, 4" Sony Watchman style B&W tube. No newly manufactured ones, and when I search a lot of industrial-style LCD displays come up.

I think Thomas Electronics may be it in terms of new manufacture.

Re: Semiconductor Lifeline Keeps Fighter Jets in the Air

#24

This makes me think of Jazz Semiconductor in Newport Beach. I think they’re Tower Semiconductor now, but I believe they’re still there, a small fab in SoCal that I assume is making obscure, important stuff.

Skywater was working a foundry for similar markets.

Re: Semiconductor Lifeline Keeps Fighter Jets in the Air

#25
This is actually a topic I have deep experience with.

I wrote both test bench and aircraft code to replace an F/A-18 (C/D) chip in the RPYC (Roll Pitch Yaw Computer) due to the original being NLA. If I recall correctly (this was a couple decades ago now) the new chip was NEARLY a drop in but had a slightly different rise/fall curve and a couple of ns faster response. It was the closest I could find but required software updates to both the aircraft and the test bench to not be an issue.

So yeah, this has been an issue for decades. I'm personally glad to see a company addressing that market.

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