HMV 900 , Pre War Television 1936 , showing the Baird 240 line system and EMI 405 line system
HTML-код
- Опубликовано: 9 окт 2020
- These are the first tests of the HMV-900 after restoration. The video shows it running on the Baird 240 line 25 frame system ( which flickers ) and on the EMI 405 line 50 frame interlaced system. These are thought to be the first time the television has given a picture for over fifty years
The fact that it's showing TV from nearly 90 years after it was made is so crazy.
signals are signals
Especially in such a smooth frame (or field) rate!
If you've got enough money and the desire to, then just about anything old can be made to work again.
Make no bones, this set has been repaired many times over the years, and now it's been complete restored.
How much of it is actually original
The Art Deco design of that television set is exquisite.
That's a lovely bright sharp picture, nearly ninety years old and still functional, a genuine widow maker with it's low impedance eht supply, great to see it alive.
Electronics in them days were built to last not like these crappy shitty led smart TVs ugh can't stand em pieces of Chinese garbage shit
The eht mains derived power supply is not to be trifled with I heard terrifying stories of TV engineers getting roasted alive by these TVs
@@user-lx3th5on8l been in the trade since 69, some of those old guys i worked with had some horror stories about how dangerous they were with primitive insulation, and the live ends of Visconol hv capacitors ready to catch the unwary, and foot long metrocils hanging off the crt final anode connection.
Got some working 405's from the 50's, but it's incredible to see a set that old working so well and also in 240 line as well. What an amazing video.
Magnificent! I can smell the hot dusty valves from here. Still perfectly watchable.
I first saw that tv in 1952. Brings back memories.
Beautiful and impressive! 1936 and with white phosphors! RCA in the US was just launching their field tests and many of the CRTs had greenish or pinkish phosphors. It took until April of 1939 to launch TV on a public basis here (New York, Chicago, Philadelphia, Schenectady and Los Angeles). I sure hope future generations will appreciate and treasure these TV sets! Everyone looks at screens many times a day and few think as to where they came from.....
In the 70's I spoke to a family friend who remembered seeing tv at the 1939 worlds fair.
In 1936 this TV cost as much as buying a 2 bedroom flat in London. You had to be rich to own one. Luckily some were and a few survive. Just amazing!
Yeah too bad the service shut down the eht is terrifying 😮 you don't want to fiddle around in there it'll be the last thing you'll ever do 📺✳️🔥
I swear if I win the lottery, I would dedicate a large room with retro tech of all kind.
My passion would be Old Radios, I had a few a long time ago but they got left when I had to move.
I have a couple rooms with retro tech of all kind. I found it all in the dumpster. Helps if you're not picky, but you can (and often do) find treasures since people don't know what they're throwing away. (also helps if you're good at repairing stuff, although most of the time I pull it out of the container, it just works)
Don't need any room. All I have to do is access my memory.
🤨 I wouldn’t call these retro - they’re antique
How magical this must of been for those that could afford one. A wonderful piece of vintage tech in good working condition but for me, the best part was the C test card for 405 lines. I was fascinated by this as a young kid and then, only to get told off by the school teacher for drawing it in my books.
New technology is always interesting because there's real effort made to get people to purchase the equipment. Because the sets were so expensive, the quality of the programming was FAR superior.
The same is true of computers.
But now that a television is dirt cheap, and so is a computer, little effort is made to make the programming of either that appealing.
Underneath the mirror lid hinge on the main tv cabinet a number stamp can usually be found on these sets indicating roughly when the cabinet was made-further details probably available from EMI archives trust.Very unusual to have a surviving set with the 240 line switch.Most sets of this kind that turn up have this switch blanked off.An HMV 900 like this turned up in an auction house in Scarborough north youkshire in 1989.
Lovely work! I would hold my breath every time I powered it up!
So do I
@@vintagevideo4044 why did you expect it to blow up in a spectacular shower of spark's 😂
Would love to see more videos on the 240 line Baird system - hardly any videos on RUclips of it, and here comes your full working set if both that and the EMI! Many thanks.
Yes, there's very little of the higher line-number Baird system. This from presumably an electronic source; I'd love to have seen what mechanical 240-line was like, rather than the 30 (or 45, as I only recently discovered USA had) line usually shown.
That would be really interesting. There is of course film from Baird’s 240 line days, but only the film actually shot in the studio because it was shot on a film camera and then processed and scanned underwater approx 54 seconds later at 240 lines, but there was also a flying spot studio that did announcements in between, that was scanned at 240 lines with a light beam and then picked up on photocells. This allowed the programme to switch seamlessly between the studio (via scanned film) and live flying spot announcements, which gave time to reset the studio for the next act. The announcements were therefore quite long but had to be carefully scripted so the next filmed studio segment could start 54 seconds before the end of the live announcement in order to allow time for the film to run through and process and be scanned. I’m guessing it’s highly unlikely that the combined sequence of these two (scanned film, alternating with live flying-spot studio output) which was what was broadcast, was ever captured on film as I’m not sure that there would’ve been a reason to do it.
Apparently the announcers hated the pressure, because they had to practically sit in the dark in the flying spot studio, and yet read the script completely accurately in order not to mess up the timing - and of course, having a film camera perched on top of large tanks of smelly developing chemicals in it wasn’t much fun either.
Baird’s system took turns against the competing 405 line electronic system - they broadcast on alternate days - but it’s hardly a surprise that the purely electronic 405 line system, which also allows you to have multiple cameras covering the studio action, won the competition and was the one that was adopted.
Like powering up a nuclear reactor every time with so much complex old high voltage componentry. A big grin every time a success! Such a beautiful TV.
Wow what a time to be Alive I can watch one of the world's oldest TVs through the world's newest cellphone
You took the thought out of my head.
I recall a 1940s Three Stooges episode where one of these projection console sets was used in a gag. The rich folks are viewing the set [the latest novelty item for the well-to-do types - which shows Niagara Falls. Someone comments as to how realistic the screen looks - then, all of a sudden water begins to rush out of the screen - almost drowning the high end tux types sitting around the tv. I think Curley was a plumber who had been running amuck with pipe assembly throughout the house I remember that the set was one with a lid that once opened, had a projection screen on the inside of the lid - - never had seen one although I grew up watching every episode of "I love Lucy" as they were first broadcast, beginning in 1951 on an early RCA "Golden Throat" 17" model. The Washington, D.C. region was one of the earliest areas to broadcast, beginning ca. 1945.
This isn't a projection set, just one with a vertically mounted screen viewed through a mirror, the reason being the length of the CRT.
Impressive sound for such an old tv
I see it has a lock and key. This is something modern televisions should have.
I remember my family's first TV set in 1957. It was a 23" Blaupunkt "Palermo" in a chestnut wood cabinet, big and heavy, with two doors in the front, lockable with a brass key... And in those days there was just one tv channel in Sweden, no broadcasts on Wednesdays - and the favorite show for me was "Andy Pandy" ("Watch with mother" in English?), and Perry Como show, the news for my older siblings and my parents - and the TV-set was brought along in the summer to our summer house... It took a Willy's Overland station wagon to transport it...
The living room was filled by neighbours during the socker championship in 1958... and I did not give a damned about the socker game, 4 y.o. as I was...
Can you imagine breaking into a house and trying to steal it? You'd be noticed for miles trying to drag that lump around
@@lars-goranwillny42 Perry Como was popular in Sweden?
@@alanrogs3990 I could not say Perry Como was specifically popular in Sweden in those days... I believe that the Swedish Radio and TV Corporation bought what was avaliable from abroad in those days, mainly from the US and UK (BBC production). I remember there was Disney productions every Saturday evening. The aim for for both Swedish radio and TV productions was, beside a small amount of entertainment, mostly of educational taste. Like BBC, the SR and STV was issued by government monopol. In 1961 a pirate radio station, Radio Nord, was established, influenced by american "WWxx" stations and Radio Luxemburg, and that put a different style to Swedish broadcasting - but that is a different story.
@@lars-goranwillny42 Seems like interesting times. Like back in the days before strict regulations when radio stations in the US had enough power to broadcast over a large amount of America. So then they moved across the border into Mexico.
I'd love to see the face on the TV licence man, who calls round to confirm that you genuinely only need a black and white licence and you show him this.
I recall seeing one of these tvs way back about 1966,in my neighbors garage.
I finished this video like 5 minutes ago and I still hear that noise LOL
That pre war TV set will outlast the latest flat screen TV's. I'll take old school any day.
Oh, i forgot to mention that if these flat screen TV's were "great" how come after a year throw them out like yesterdays newspaper in fact when i pass by i see a discarded flat screen TV. that's "MADE IN CHINA" "quality" for you. sometimes i think those flat screen TV's with all the bells whistles and all the fancy doo dads were designed to self destruct maybe after one month or a year.
Those TVs are already broken soon as they come out of the factory 😂
Totally awesome! Thank you for a wonderful experience.
I remember these tv my neighbor had something similar it was compact design I remember watching cartoons on after school and could remember how to turn it on this was in the 80's they eventually had to get rid of it because it was old they got a 27inch turn nob tv no remote lol I had to run back and forth changing the channel 😂
Oh wow that's a good picture quality too
Imagine how revolutionary this would have been in 1936
Good to see the 240-line system working. Most restorers seem to leave it out.
Unlike today's soulless flat panel TV's, this is a beautiful piece of furniture! 📺 ... Just imagine how exciting this "box of moving pictures" must have been 86 years ago? (as of 2022) ... And the only plastic used in its construction was the Bakelite knobs!
Lasts longer
@@markhodgson2348 What lasts longer? ... Do you mean the CRT TV will last longer than a modern set? At 87 years old, I think we've probably established that much! 🤣
This is amazing! Congratulations for the restauration work! I loved all the images and the set has good focus! I am an electronics engineer from Brazil
Excellent work. Many thanks
I had no idea the picture quality was so good on these very early models. What a fine example and impressive restoration!
Well done sir. And thank you for showing the inside with the working CRT.
Greetings from Canada, your newest subscriber!
Trust me, this was not the picture quality folks were seeing in 1936.
@@Frip36you sound very sure
@@Frip36How do you mean?
What a nice set, glad you got it going. Now I know why they did the vertical tube and mirror trick, boy are those early tubes long, (imaging a 40 inch tube, with those ratio's, you'd need a two storey building to house it) it would take many years to get them down to their final length vs screen size radio's before giving way to flat panels.
I think it was because they used electrostatic deflection - as in an oscilloscope - rather than magnetic. (Plates inside the tube rather than coils on the neck.)
What an amazing TV set! Nice project
I much prefer square tube television screens.
My father bought our first black white tv in 1963.
The tv license was still in effect here in Australia until abour 1968 from memory.
Superb set, technique and design
What a treasure!
The BBC alternated with 240 lines and 405 lines for a few months in 1936 and 1937 before determining that the 405 line (Marconi) system was better. It certainly had much better picture resolution Han the 240 line (Baird) system.
I’ve commented under somebody else’s comment, but yes! It was also much easier to produce programmes fully electronically than it was to have a combination of scanned film in the main studio area and a flying-spot live announcement studio with all the problems of developing film and allowing for the delay. In contrast, the fully-electronic Marconi production allowed you to have multiple cameras, was totally silent, and instantaneous. It was a no-brainer really, for the BBC.
Still works better than a LG WebOS TV
Excellent Fun!
I guess reflecting the picture in the mirror was done so the picture would be right side up.
Hi because the tube is about 70cm long, if it was mounted horizontal the tv would have a very deep cabinet, so by mounting it vertically was meant to save space and then view it with the mirror.
This flat mirror reflection allows for wide angle viewing from left to right - - yes/no ?
@@Jeffrey314159Yes the mirror is wide to let lots of people view it
@@vintagevideo4044 Probably his remark was that the height mirror flipping of the image is not a problem, unlike the side flipping in the mirror. The horizontal "beam" rasterizes in the opposite direction so that the image is correctly flipped sideways in the mirror, which is a matter of the opposite connection of the horizontal deflection coils. Vertical deflection coils are unchanged in this application.
Great video!
Very interesting to see this old set still working. I wonder how many and how long these sets and other pre war models were kept going in daily use into the late 1940's and 50's following the post war resumption of BBC tv in 1946? I also wonder if any of them ever received ITV programmes from 1955 using a Band Three converter if they were still going strong at that time?
As far as I know 12 inch tubes for them were available into the 1960s
My nan still had one of them in the 60s
@@chubbyroyston3880 That's amazing. Did she own it from new?
Whoa that tube isn't even coated with anything on the sides! That's pretty crazy to me.
Does the lack of coating cause more radiation?
@@18000rpm Radiation doesnt come from the CRT it comes from the flyback/trippler
@@Synthematix - Not so! The CRT and the HV rectifier tube(s) would be the X-ray sources here. And they do not occur in most monochrome TVs because the voltage is not high enough. Color TVs with their voltages of 22+ kV are the ones that have X-ray problems.
@@Inflec Some of them used heavy lead glass to reduce this problem.
@@MrToradragon - True, which is why disposing a CRT in an environmentally friendly manner is such a headache.
If you enjoy test patterns, this is the show for you.
Ein Tolles Gerät .
I want one !!!!!! Ok, two. Thanks for posting this video. I wonder how expensive this set was when it was new, compared to say an new fridge or car or truck or any other big appliance purchase of the time. I'm sure you had to be rich to afford on of these at the time. The cabinet looks very posh and fancy too ! I'm glad you showed the innerds. I saw a 1947 tv for sale, a type like this but it was a projection tv, but the tube sat like this one, from bottom to top. They said they were very popular in bars, the tv was very tall and very big.
Astonishing!
Something people often forget is the fact that, in Britain at least, a big reason for the government to spend so much money on TV when almost nobody watched it was so they had a reason to work on CRTs for radar without it looking suspicious.
The first cathode ray tube video image was created in Russia in 1911
Old Television in 2021.
Very cool-ish.
Wow! I've seen one of these sets in action, but I'm pretty sure it wasn't a dual standard. In fact I've never seen a 240 line TV working before.
Really interesting to see how the interlaced 405 line signal is shown on non-interlaced 240 lines. (Presumably the apparent banding on 240 lines isn't really there). You end up with two un-interlaced test cards stacked on top of each other! That takes a bit of thinking about. Not sure why the 405 line vertical sync doesn't mess with this half way through the frame.
Hi , the camera causes the problems filming 240 lines, I have tried different filming modes and cameras, but none like it. The actual flicker with 240 line, is like complete frame flickering. I now have a converter that lets me watch 240 line, live but 5 minutes viewing is enough for me, before it's headache time
Yes I presumed it was the camera that was not coping with the 25fps image. (I see that as you change the camera angle the banded section moves somewhat.)
I can well imagine it gives you a headache! I have a low persistence of vision and can't cope with low frequency pulsed LEDs.@@vintagevideo4044
There's stories of those days in the UK before ITV if people got fed up with the State owned BBC ? Some People would build their own equipment and transmit their own Unlicensed TV Stations over the airwaves.
This wasn't only in the UK but pirate or unofficial or non-licensed broadcasting happened pretty much all over Europe because people in many European Countries were stuck with only one state broadcaster which ment they were only being fed state propaganda. Therefore some people rebelled or wanted alternatives and created stations of their own and their are still a few of them in Europe today.
Obrigado por nos apreciar com esse bom vinho...
Amazing
Verdadeira relíquia...e ainda operacional. Parabéns esse tipo de coisa que gostaria de ver de perto.eletronica antiga..
Could you please tell me what make/model of camera you used to video your 900?
thanks
Note the shallow angle of deflection. Over time, the tubes got shorter and shorter.
Was the format 4: 3? Or 1: 1?
Originally 5:4 , but its set up with a 4:3 test card from a Aurora converter
The BBC started off at 5:4 but switched to 4:3 in 1950. Earlier sets would need a slight adjustment the next time the repairman came around.
exciting to see two girls smiling in front of a smartphone on a cathode ray tube guarded by a 1930s art deco cabinet
Maravilloso!!!
Imagine if you could send the video signal of what you are showing now back to the person who was watching the set when it was new.
How many visible lines have 240 lines Baird system?
I know that 405 lines have 376 visible lines.
That does tend to vary, with different articles I have read, but it's about 208 visible lines
Ooh, yessss! loads of spicy, brute force EHT - not for the faint hearted!
... great stuff!! Did you restore this yourself? Amazing challenge and a remarkable outcome ...
Yes I did everything myself
It has 23 valves and the crt, that you could call the 24th
No whimpy safety glass....a proper man's television! Love seeing the picture from the back of tube....what voltage is the HT...
Yes there is safety glass in front of the tube face, but I cleaned it very carefully
The ht is 280 volts and eht 5kv
I didn't even think that television sets actually existed until the 1950's.
I've got a photograph of my Grandmother taken in 1938 and there's a TV exactly like beside her..
Its not her house it's a house she use to work in as a cleaner, the owners were rich.
TV was stopped in the UK in 1939 after the outbreak of ww2, and the first programme shown when it was started again in 1945 was the second half of the show that was being shown in 1939.
People had to wait 6 years for the second part of a TV show
these tvs goof
Feel like I need one of these just to watch BTCC!
how much did a behemoth like that weigh? Still though for pre-war I'm sure it was considered pretty close to miraculous to have a moving picture and sound in your home.
It's 18.5 stone, which is 117kg or 259lbs .
@@vintagevideo4044 WOW, that's a lot!
nice to see that working again. what converter did you use for the 405 and 240.
A Aurora converter for 405 line and a broadcast pattern generator for 240 line, that wasn't made to do 240 line, but can be adjusted by the user to do it
What did you use to generate test signals?
For the 240 line it's a Quantum Data 801GD pattern generated, you have to program it to do 240 line and for 405 line a Aurora converter
Beautiful crt seen from inside the set! Such a clever design: the controls and screen hidden when closed, it wasn’t as deep as the tube was firing upwards rather than horizontally. Finally (and I’d like to know if this is a thing) I wonder if it was also a safety thing, protecting the viewer from implosion (directed up rather than out) and also radiation emitted by the tube being directed upwards and not straight out to someone sitting in front of it?
It's only done because of the length of the tube, and the glass in front is, as you say for safety, if the tube did get broken, the high voltage to the tube is to low for x ray type problems. The Marconi 704 is direct view and does have a deep cabinet, because of the tube length
@@vintagevideo4044 thanks for clarifying! I have to confess I didn’t spot that the TV screen also had glass in front of it. I used to mess about with old valve TV sets when I was at school, in the mid 70s, when there were a lot of them still around, that you could get secondhand, or even have people give them to you. Some of them had thick Perspex implosion screens - I remember that. Hence, really interested in your video. I really appreciated both the overall design and the inside of that set - it looks beautiful. It’s a work of art! Lovely that you included the entire warming up sequence. There is sort of magic to watching it come to life. I think we forget that you couldn’t just instantly switch stuff on, or have it always available.
7:05 thank you.
This is an astounding achievement. I have seen only one working in recent times and that was in a museum in South London. I am rather surprised at the large tube size given pre-war glass blowing and evacuation pumping. I see SP41/61 style valves with top cap and metallizing screen don't I?
Wow how come those other components can take the EHT strain? Scary! Look I know its not authentic but I would strongly recommend the use of an external fan to keep it coolish. You don't have to fit it. Oh me oh my I cannot speak!
I am not familiar with Baird 240 line system and I don't get how you have done that or why? Was that ever a broadcast standard? Even during parallel testing? Never too late to learn is it?
Well done!
The eht transformer has been rewound and does run cool . The longest time the tv was run was one hour and forty five minutes and everything was still cool
@@vintagevideo4044 Thankyou. Fantastic. So impressive. Is it a flyback LOPT?
No it's just a mains transformer with a over wine that jumps it up to 5kv
That would have been at Gerry the museum in Rosendale Road, Dulwich; according to his spiel, it was the one that had belonged to the postmaster general, or director general, or similar. I don't remembr it having the 240/405 switch, though, though it may have had.
@@vintagevideo4044 For only 5 kV, it's a very sharp image (and - hard to tell of course - looked good and bright, too).
And 5 kV from 50 Hz mains would have been pretty lethal: is that thing by the tube the smoothing capacitor?
That line pattern is basically what North Korean TV was using.
Why couldn´t we see all the controls on this very interesting piece of equipment? Instead of all these horse races!
Some controls are with the radio controls and the others are under a cover in front of the system standard switch, when I do these videos I try to do them live, so you can see how long it takes to come on then it just depends what's on television at the time , I never use recorded pictures
Did the Baird set utilize a Nipkow disk?
The HMV 900 is all electronic, but in the studio Baird used a mechanical 240 line disc camera that was based on the Nipkow disc or film scanner's to produce the picture
How much does a replacement CRT cost? Of course if you can find one.
Not that sure but about £800 to £1500 for a good one
@@vintagevideo4044 Oh my!
Thanks for the wonderful video! I have been studying the history of television for a long time, but this is the first time I see this TV at work! What exactly had to be restored in this TV? What problems did you have during the restoration?
The main problems are always capacitors, most have to be replaced. Other things resistors, have to be checked and most survive ok and the controls like height, width, have to be checked and cleaned as dirty controls, can cause huge problems
Tell me how did you get this antique TV? Are you a restorer?@@vintagevideo4044
amazing.how does the tv "change" from baird to emi systems?
love to be told wat each valve does and how it all works. is there somewhere?
The person watching, uses the silver toggle switch to switch between the two systems. The transmission standard between the two systems is similar so nothing is charged in the reception part, the switch alters the height, width, line hold and frame hold, so mainly switches extra resistors and capacitors in and out of the time base circuit
How can this old receiver show modern, 625 lines TV broadcasts?
Other enthusiasts make digital converters that convert 625 line television to any standard, you want and then you, just connect it to the aerial socket
Is that CRT original? Deflection is electrostatic or magnetic? The picture is amazignly briht! Magnificent restoration, keeping the final inspection tag at the tube's zocket was a nice touch. Thanks for share it
It's a replacement tube, although I don't know when it was done, but that's how the value layout chart is marked. It has magnetic deflection
@@vintagevideo4044 Really? I always assumed the narrow deflection angle was because of electrostatic. I guess just much maller coils than later sets.
The deflection is magnetic and the deflection angle is low because the first generation of output valves could not provide enough output power for a larger angle
@@vintagevideo4044 I'm sure you're right, since you restored it! I just couldn't see the coils (at about 7:08 and 7:33), which I'd have expected if anything to be even bigger than later ones, if the valves couldn't put out much power (so I'd expect the coild to try to make the most of what little power they could produce).
Presumably that was why a mains-frequency EHT source too - or was it just that no-one had thought of using flyback energy yet? (Or kHz transformers hadn't been developed?)
How did you bet more than 1 channel on the tv? From what i know, BBC (later BBC 1) was the only channel then. Did you retune it throughout the years?
This would be analogue. I'm just wondering how it can get a signal in the digital age?
I use a Aurora converter, it takes 625 line in and outputs 405 line, plus it has a modulator built in, so it plugs into the normal aerial socket
Nice
It's great to see a dual standard 240/405 line set working.
Interesting to see such an old set displaying a digitally-generated picture(test pattern). Is there any chance you could down-convert some live or broadcast video to display in 240 lines? Is the 240 lines interlaced or progressive?
As for 405 lines it was also nice to see it displaying an image of a modern mobile phone, I assume you down-converted from SD/HD or whatever? It seems to be fairly contemporary.
In the interior shots, it seemed that I could hear the 10.125 KHz horizontal deflection! With 240 lines, that would only be 6 KHz?
The 240 line pattern in the video, was done by the broadcast pattern generator, that can be programmed to do 240 lines 25 frames , but I now have a unit called a Hedghog psc, which is a programmable standard converter, so can do live 240 line pictures and that is fed by 625 line signal from a set top box. The 240 6khz whistle is very noticeable, but the worst thing is picture flicker , which after a while is to much to watch
@@vintagevideo4044 As the frame rate is 25fps, I assume the 240 line signal is progressive scan, as that would make the flicker worse.
Yes that's is correct
@@vintagevideo4044 Great re the PSC.
Ironically, I often view RUclips in 240p to conserve bandwidth, though admittedly that's in 16:9 colour digital :-).
Do you use Aurora or Hedgehog?
I use Auroras, but do also have a Hedghog ll
why is the image not reversed in the mirror?
The image on the tube is only reversed left to right, so on a test card is difficult to see
I thought John Baird invented mechanical television? anyway this is a beautiful video, just noticed you turned the power switch left and not right, how unusual. the 240line tvs had a noise about 8khz on the flyback doesnt it? and 405 line about 11khz? this is the first time ive ever seen a transparent tube bell running.
Baird invented 30 line television and run a service from September 1929 to September 1935. In January 1935 a government report said the BBC should operate a tv service and the minimum definition should be 240 lines. So Baird made a 240 camera using a twin high speed disc system in a vacuum chamber and a movie camera filming 35mm film that was developed in about 54 seconds then scanned and turned into a 240 line picture. Both systems were inflexible. Marconi had their electronic 405 line cameras that could go anywhere. On the 2nd November 1936 the television service started with one week on 240 lines and the next week on 405 lines, this carried on till January 1937 when the 240 line system was officially dropped due to it being inflexible and technically troublesome. So the Marconi EMI 405 line system was the winner and the standards switch on the HMV 900 would have been left in the 405 position and latter service manuals advised removing it
@@vintagevideo4044 Nice one
Do you see these film scratching on the TV thingy
Yes, if it's bad enough
Baird recorded some his 240 line broadcasts onto film. Whatever happened to these?
The system used a massive amount of film, but I have never seen any, so don't know
It has been suggested that the film was melted down during the war to recover the silver in it. There was a large amount if it ( the film) but think it is just a clever guess.
My thoughts are, what programs were broadcast in '36 ? What was the content? Was this able to reach Europe? It's fascinating. I was born in '54 . I don't remember much until maybe '57 or '58. I know I didn't sit around a TV like I do now.
They were live programs, about sport like golf and farm animals and acting and many other subjects, ones done in the afternoon, had to be done live again in the evening, all were done in the studios or surrounding land. The 240 line or 405 line VHF transmissions went a lot further than expected, but not sure if they could be recieved in Europe, the earlier 30 line transmissions certainly could be
Is the 240/25 flicker as bad in person as on video? But wow man wow!!! What a set!
It does flicker in 240 line mode, but the video camera makes it look worse and the youtube process even worse still
@@vintagevideo4044 I did wonder... given that movie frame rate is 24fps ... and this is effectively 25 frame progressive.... and VHS video tape resolution.
@@ceebee23 All of those are interlaced to hide the flicker . Movies were originally speeded up to 25 frames . With things like blu ray 24 frame the display panel ups its frame rate to hide flicker , we did do some tubed televisions that would display progressive from DVD and the customer books warned about flicker in that mode.
@@vintagevideo4044 of course Baird's system suffered other issues ...with streaking caused by dirt in the disk scanner and general issues of the film system etc... not to mention the issues around the whole fixed camera setup in the studio
A 1936 TV set! How about some TV output from the time (admittedly there is not much, the earliest surviving recordings are that of the Royal Wedding in 1947); the C test card did not come out until 1953, ITV (Originally ITA) in 1955 and switchable TVs in 1949; these were used by set-top boxes by ITA which was accessed by the BIRMINGHAM switch for a LONDON set (and vice versa). No set of that time would have received all those different channels or in 405, it looks as if all the switching was done by a modern set-top box.
I do have some early things, but still like to run live programmes on them
I had known about a screen film made by an enthusiastic amateur bear Ipswich who had an ambitious aerial displaying the 1937 Coronation Procession. Apparantly it went into the archives and had never been seen again but about a month ago I saw a snippet from a BBC documentary some years back. It looked genuine because it gave the same view as one of the film newsreels whose camera man had sheltered from the rain under the temporary elevated platform built for the Emicron camera. Does anyone know where the whole "recording " now is ?
It must be fun to watch anything on a TV set that was made when FDR was in the White House.
A now the tv rules the world.
I’d love to see you play Sonic the Hedgehog or other Sega Mega Drive games, given they’re inherently 240 lines
Hmm I guess you must of modified it so you could hook a set top box to it, to receive digital tv
No modifications, I use a Aurora converter, it converts 625 to 405 and has a built in modulator, so as long as the digital box has a 625 line video output you can display it on the tv
has an old TV, plays modern programmes.
You use a converter, that converts a modern signal, to the old system and plug it direct into the aerial socket
Has it got a HDMI input?
Sadly not
I'm sure retrofitting deflection amplifiers, and such can keep this alive indefinitely, but I assume the CRT itself is irreplaceable. Obviously, money can solve almost any problem, but is there anyone reproducing CRTs like this?
The CRT is one item, that if did fail, would be the end, unless a good original replacement could be found. Some years ago now, there was a place in France, that could rebuild CRTs of this age, with a new electron gun, but gave up and the equipment went to the Vintage Television Museum in America and they were planning to offer a repair service, like the French, but are still trying to perfect the process. I have see it done in the UK , and it was a one man business, with many different skills, I still have CRTs, done by him, that are still going strong. Like the one in the Marconi MK5 picture, waveform monitor , in the EMI 2005 camera video
Imagine playing cuphead on that