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The Reassembler - James May rebuilds old stuff on BBC Four |
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#26 |
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I really enjoyed the lawn mower one, it had a feel of those 'slow TV' programmes. Looking forward to tonights.
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#27 |
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Join Date: Sep 2005
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I s'ppose this programme is fine for those who like this presenter, but he's never been my cup of tea. So I wouldn't watch it.
As for "how to," information, there's thousands of these videos on YouTube, on practically .....everything. Unfortunately, some are more about the person presenting the information, rather than about the detail, but it's often the same with TV programmes. |
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#28 |
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TV engineers rarely need a soldering iron these days, no capacitors or resistors to change like in the old valve sets.
Computer diagnostics reduces the job to mostly swopping, "pull out, push in," printed circuit boards. |
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#29 |
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think I give up with this my first recording had sign language on so wiped from my Sky HD box and to download the HD version again only to have sign language.
I cannot record at 9pm due to recoding clash? |
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#30 |
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Or even binning it because it's not worth the cost of the repair.
About six years ago it blew an output transistor. A repair would have cost around £100, if there were no further damage. So I binned it and replaced it with a similar vintage tuner/amp I bought on eBay for around thirty quid, it's worked perfectly since. With the renewed interest in vinyl, such things and vintage turntables are creeping up in price. |
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#31 |
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Bit pointless stripping down the dial completely, i think they were normally supplied complete and would be replaced as one part because their assembly was a specialist job.
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#32 |
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Air going over the curved upper surface has to move faster (as its a greater distance) than the air going under the wing.
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#33 |
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Quote:
This is so true about a lot of "kit" these days. I had a tuner/amp I bought decades ago which would have cost the equivalent of the best part of £1,000 today.
About six years ago it blew an output transistor. A repair would have cost around £100, if there were no further damage. So I binned it and replaced it with a similar vintage tuner/amp I bought on eBay for around thirty quid, it's worked perfectly since. With the renewed interest in vinyl, such things and vintage turntables are creeping up in price. This vintage gear is worth repairing. |
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#34 |
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Quote:
Bit pointless stripping down the dial completely, i think they were normally supplied complete and would be replaced as one part because their assembly was a specialist job.
As far as I'm concerned it wasn't pointless because it allowed us to see him reassemble it and make some remarks about it's assembly, especially coiled springs and Quantum physics ![]() I found the mini governor interesting, it's unlikely I'd have worked out what it did otherwise, I'd have been too concerned with simply getting it back together. I didn't see enough about the fibre 'clutch' he mentioned. A bit of an explanation about transistors and old fashioned switching in the telephone would have been good. Nice to see the crew having a giggle with the presenter too. Very odd commission, rather like Danny Bakers 'Brushing up on...' which was getting a repeat earlier tonight. |
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#35 |
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Also why an engine RPM increases when the butterfly flap allows more air/petrol mixture into the combustion chamber has never been explained to my complete satisfaction.
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#36 |
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The assertion is made at the start of the program that only by taking something apart and putting it back together can you really understand how it works, but I think they're overstating the value of this. For example, there is a belief among a certain sector of electronics hobbyists that you can learn how a circuit works by soldering components onto a board. I spent years at university learning how to design electronic circuits and I can tell you there's a lot of equations involved.
Understanding how something goes together why parts are where they are, what they do etc. You don't just put it together, you're working through their processes as you go, assembly provides a context for each part, to drill the thing into your brain. |
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#37 |
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Another enjoyable 're-assembly'. I liked the chuckling amongst the crew. Anyone notice how virtually all parts and connections in that phone were made with screws, nuts or threaded bushes - no crimps, rivets or 'interference fit' parts.
Makes you proud to be British. |
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#38 |
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Another enjoyable 're-assembly'. I liked the chuckling amongst the crew. Anyone notice how virtually all parts and connections in that phone were made with screws, nuts or threaded bushes - no crimps, rivets or 'interference fit' parts.
Makes you proud to be British. I don't know what's wrong with crimps and rivets or interference fit either, they've all got their place, in the scheme of things. |
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#39 |
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I don't know what's wrong with crimps and rivets or interference fit either, they've all got their place, in the scheme of things.
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#40 |
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Why didnt you just put in a new transistor? Cost less than a fiver usually for the tranny and you have the satisfaction of having repaired it.
This vintage gear is worth repairing. |
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#41 |
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Air going over the curved upper surface has to move faster (as its a greater distance) than the air going under the wing. Since the air has to move faster it thus has less density which 'sucks' the wing upwards. See Boyle's law
![]() Quote:
Why would the greater distance make the air move faster?
. Seeing as the same air starting at the front of the wing meets up again at the trailing edge, it must have moved faster over the top since it had farther to travel.
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#42 |
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It should beon much longer, its too short. Very relaxing.
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#43 |
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It should beon much longer, its too short. Very relaxing.
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#44 |
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DIY unfriendly obviously.
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#45 |
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Quote:
Why would the greater distance make the air move faster?
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#46 |
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#47 |
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Quote:
TV engineers rarely need a soldering iron these days, no capacitors or resistors to change like in the old valve sets. Computer diagnostics reduces the job to mostly swopping, "pull out, push in," printed circuit boards. |
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#48 |
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Re: aircraft.
As I understand it, most of the lift is due to the wing moving through the air at a slight angle. The curved top surface is to prevent turbulent flow, which would increase drag. |
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#49 |
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I can see that I'm in the minority here
but OMG that couldn't have been any duller if they'd shown it in real time tim |
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#50 |
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I can see that I'm in the minority here
but OMG that couldn't have been any duller if they'd shown it in real time tim |
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