Keep in mind that other parts of the world continued to use part of the VHF band for TV long after the 1980s.
Mark
Keep in mind that other parts of the world continued to use part of the VHF band for TV long after the 1980s.
Hence my previous speculation...
The All-Knowing Oracle says New Zealand used VHF bands I and III until 2013. @jpnz - is this right?
BNC type maybe?
Yes, that's the one, thank you! Quite a wide-diameter, I believe.
Not only did I experience that on a regular basis with the Philips portable I had, and the speaker falling down after my 'percussive maintenance' was rather too hard, I actually opened up the television to fish the speaker out with my bare hands and placed it back into position. A successful repair! Yes, I had turned the television off, but years later, in an electronics lesson at college I learnt that I could have been fatally electrocuted if my hand touched certain parts of the inside. A friend of mine, who knows a lot about electrical dangers, says that you'd have to have had the telly powered off for at least THREE MONTHS for it to be safe for a 'civilian' like me to tinker with.XTM wrote: ↑Mon Mar 13, 2023 7:08 pm I just remembered an annoying "feature" of my old b/w TV. It would often do a high-pitched whining sound and occasionally this became very loud, maybe after it had been turned on for too long, I'm not sure. I was able to temporarily "fix" it by striking the plasic case on the top/side, sometimes I had to do multiple strikes. Unfortunately I must have slapped it a few times too often on its side, as one day the grille of the loudspeaker on the right side broke and fell inside
Anyone else experienced the above (speaker bit at the end optional )?
And there I thought it was footage from Daniel Day-Lewis' oscar-winning performance that didn't make it into the film ...
Splendid! I never imagined someone else would have experienced the same!PeteProdge wrote: ↑Tue Mar 14, 2023 9:29 am ... the speaker falling down after my 'percussive maintenance' was rather too hard
My daft maintenance job involved the Speccy power supply.PeteProdge wrote: ↑Tue Mar 14, 2023 9:29 am Not only did I experience that on a regular basis with the Philips portable I had, and the speaker falling down after my 'percussive maintenance' was rather too hard, I actually opened up the television to fish the speaker out with my bare hands and placed it back into position. A successful repair! Yes, I had turned the television off, but years later, in an electronics lesson at college I learnt that I could have been fatally electrocuted if my hand touched certain parts of the inside. A friend of mine, who knows a lot about electrical dangers, says that you'd have to have had the telly powered off for at least THREE MONTHS for it to be safe for a 'civilian' like me to tinker with.
No, all the TVs of all the family (my own mum and dad, my nan and granddad, my other nan, my uncles etc) were either on their own stands, or on top of another item of furniture. I don’t think I ever saw a TV in a cabinet apart from in shops.worcestersource wrote: ↑Tue Mar 14, 2023 7:49 am So here’s a good question. Did anyone’s family tv live in a cabinet?
Err, unlikely it would hold a dangerous voltage for three months. And the bigger risk is not the 15 to 25kV EHT (which is actually hard to get accidentally zapped by, as the cable HAS to be well insulated), but rather either the live metalwork (yes, that may include items inside other than the circuitry) which may be referenced to the mains line (live) or neutral (via a bridge rectifier), or the charge on the electrolytic capacitors (340V DC for the rectified mains side) or the HT supply (typically 90V to 150V).These two having lots of exposed electrical connections…PeteProdge wrote: ↑Tue Mar 14, 2023 9:29 am Not only did I experience that on a regular basis with the Philips portable I had, and the speaker falling down after my 'percussive maintenance' was rather too hard, I actually opened up the television to fish the speaker out with my bare hands and placed it back into position. A successful repair! Yes, I had turned the television off, but years later, in an electronics lesson at college I learnt that I could have been fatally electrocuted if my hand touched certain parts of the inside. A friend of mine, who knows a lot about electrical dangers, says that you'd have to have had the telly powered off for at least THREE MONTHS for it to be safe for a 'civilian' like me to tinker with.
Big Clive meets Vampyre mashup in three, two, one moment please...Vampyre wrote: ↑Tue Mar 14, 2023 10:21 am About five minutes later there was a BANG! that scared the bejesus out of me and smoke started filling the room. Obviously I quickly turned the socket off and pulled it out to be granted with a blackened plug. Amazingly it didn't fry a single thing, the Speccy was still fine and nothing had tripped either. I was also able to resurrect the power supply too.