The biggest CRT ever made: Sony's PVM-4300

(dfarq.homeip.net)

235 points rbanffy | 4 comments | 21 Jun 24 22:22 UTC | HN request time: 0.215s | source

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MenhirMike ◴[22 Jun 24 21:33 UTC] No.40762400[source]▶

I'm kinda curious if CRT technology advanced to the point where a TV like that would've been possible at a better weight and price tag? I assume that CRT technology development stopped decades ago, but could we have e.g., replaced the heavy glass with some plastic-like material to save weight without compromising the picture? And are there any heavy components in the mechanism itself (Coils, Magnets?) that would have had alternatives?

I know it's just theorycrafting, but I do wonder what kind of CRT someone could've created if it wasn't for market economy forces.

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1. grishka ◴[23 Jun 24 01:24 UTC] No.40763829[source]▶

>>40762400 #

I remember reading somewhere that there was this wild prototype flat CRT where the electron gun was at the top, shooting down, and the beam did a 180 degree turn at the bottom before being deflected into the surface of the screen.

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2. ◴[23 Jun 24 09:31 UTC] No.40766027[source]▶

>>40763829 (TP) #

3. UncleSlacky ◴[23 Jun 24 11:31 UTC] No.40766639[source]▶

>>40763829 (TP) #

Yes, the Sinclair TV80 worked on that principle: https://en.wikipedia.org/wiki/TV80

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4. grishka ◴[23 Jun 24 14:08 UTC] No.40767578[source]▶

>>40766639 #

Nope, it's that, but folded in half. Found a mention of it (that I commented on, lol): https://mastodon.social/@tubetime/111219376410543899

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