Posted by edward 2 days ago
Vacuum tubes also aren't vulnerable to nuclear weapon electro-magnetic pulses.
However, other than ham radio enthusiasts I guess no one listens to analogue radio anymore.
What it did provide was a simple but reliable way to maintain emergency broadcast to general public within Britain. And it probably should have been kept online just for that reason.
Even when they can most people Wouldn’t have a clue to listen to it.
There’s a reason LW isn’t critical national infrastructure.
If we did regain the capability it would probably be solid-state.
For that matter I'd be somewhat surprised if you can't simply buy a ready-made replacement.
No idea where vacuum tubes were invented but I'm sure the BBC could find someone to make them.
The BBC has just cut its budget by £500 million, in an apparent attempt to limit the damage from the latest charter renewal process - which determines its funding. The new director general (ie ceo) is an ex-Google person, and they seem to be pivoting to become a social media content provider. So I'm pretty sure that spending licence fee money on making vacuum tubes to broadcast a signal that nobody under forty listens to wouldnt get past a value for money test.
(I like the BBC and its radio output, and I'm one of those weirdos who still pays the licence fee despite never watching tv or any of the stuff that the licence fee is required for. But it is becoming increasingly lost to me: focussed on triviality and politically cowed. Sadly, I no longer expect it to last.)
If you only watch DVDs, or stream movies etc, you don't need a license
This isn't about the little tubes that go in a guitar amp... we're talking about tubes that may well be too large for a single person to lift.
What's more, everyone who knew how to build things is either dead or in a retirement home. You'd have to re-engineer much of it from scratch.
Nixies are also cold cathode, low current devices. Radio broadcast tubes can be handling tens or even hundreds of thousands of watts.
At the moment they are running a goodbye loop, so you can still hear something.
At least there’s Radio Caroline still on 648kHz AM, so there will be a British voice still on the air.