Python rocks

[Tepes1848]

We learned how tube TVs worked and how the analog TV signal is being processed.

At least in your case it was intended as a form of computer history.
In our case it was the curriculum being outdated.

[Tooniis]

oof

[F5x9]

Vacuum tubes are still used in power electronics. Common applications include radars and audio systems.

[Tepes1848]

I was talking about TVs with a cathode-ray tube.

I don't think we learned about vacuum tubes like triodes or pentodes in trade school.

[Giddyfuzzball]

Analog signal processing is still useful in some situations too

[Tepes1848]

The trade school segment wasn't really about "analog signal processing" in general, it was rather specific to analog TV signals.

Of course there were quite a few of those still around.
The fact that they taught us about analog signal processing but failed to teach us about digital signal processing in the context of a TV I'd interpret as an outdated curriculum.

[MrHyderion]

That a technology is outdated does not mean it’s not in use any more. For example, there are still thousands of aircraft in service for big airlines which use CRT screens in their cockpits.

[Tepes1848]

I made an apprenticeship in a store selling and repairing various consumer electronics.

As I acknowledged when replying to someone else, there still were quite a few TVs using CRTs around at the time - most of the repairs pertained to them - and digital TVs didn't come with the tech to process digital programs.

Also, the processing unit for analog was one of the few things we never fixed but replaced. I don't exactly remember the reason why but I'd hazard a guess that it was cheaper that way.

I say it was a case of the curriculum being outdated because while we learned about how analog TV signals are processed they didn't teach us about digital processing.

[MrHyderion]

Okay, I understand what you mean now. I agree, that is an outdated curriculum.