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Television Standards Converters, Modulators etc Standards converters, modulators anything else for providing signals to vintage televisions.

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Old 2nd Mar 2012, 8:36 pm   #1
jenkinsrichard
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Default Daily Telegraph article 1950s TV on digital

There was an article today on page 5 of the Telegraph about a man who has got his 1950s Bush TV22A ready for the digital switchover by getting an RF modulator. I'm not an expert on these things, but won't he also need some sort of 625 to 405 line convertor?

(Also here:
http://www.kmfm.co.uk/goto.php?sess=...D1758&id=88758
)
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Old 2nd Mar 2012, 8:51 pm   #2
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Default Re: Daily Telegraph article 1950s TV on digital

Certainly need a "Standards Convertor" i.e Aurora.

David GM8JET
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Old 2nd Mar 2012, 8:54 pm   #3
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Default Re: Daily Telegraph article 1950s TV on digital

First mistake! Wooden Boxed,i dont think so.So much for lack of obseravtion by the Telegraph. It is of course a TV22 Bush bakelite.

David
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Old 2nd Mar 2012, 9:26 pm   #4
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Default Re: Daily Telegraph article 1950s TV on digital

Quote:
Originally Posted by jenkinsrichard View Post
Bush TV22A
At the risk of sounding pernickity where does it say it is a TV22A?
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Old 2nd Mar 2012, 9:28 pm   #5
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Default Re: Daily Telegraph article 1950s TV on digital

It doesnt say TV22A,the picure is to all accounts is a TV22.

David
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Old 2nd Mar 2012, 9:30 pm   #6
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Default Re: Daily Telegraph article 1950s TV on digital

PS at least its a good loptx,if of course its the original chassis.
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Old 2nd Mar 2012, 10:05 pm   #7
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Default Re: Daily Telegraph article 1950s TV on digital

Actual Daily Telegraph article (as opposed to link to kmfm article) is in the attached photograph.
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Old 2nd Mar 2012, 10:17 pm   #8
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Default Re: Daily Telegraph article 1950s TV on digital

My TV12 looks just the same as that!
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Old 2nd Mar 2012, 11:42 pm   #9
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Default Re: Daily Telegraph article 1950s TV on digital

For 'special adaptor' read Aurora?

Ian
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Old 3rd Mar 2012, 12:15 am   #10
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Default Re: Daily Telegraph article 1950s TV on digital

This was shown on BBC South East on Monday evening if I remember.
A retired TV engineer was shown using an old Bush TV he had converted ready for the switchover .
You may be able to check it out on BBC iPlayer.
If I still have the recording {On a Dion recorder from Tesco's !} I will try to play it again and report back .
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Old 3rd Mar 2012, 12:34 am   #11
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Default Re: Daily Telegraph article 1950s TV on digital

OK, Update..
The programme was BBC South East on Wednesday 29th Feb.
The TV enthusiast was a Mr Brian Maley from Whitstable.
He was using a Bush 22A ?
Also shows a few radios in the background.
Hope that is of interest,I assume this is about the same story in the paper.
It should be watchable on BBC iPlayer even if you are in another area.
Peter W....Reelguy
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Old 3rd Mar 2012, 12:16 pm   #12
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Default Re: Daily Telegraph article 1950s TV on digital

Usual garbled journalism. It sounds as if the set itself has somehow been 'converted'. Unless someone here actually knows the chap, we'll probably remain in the dark.
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Old 3rd Mar 2012, 12:32 pm   #13
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Default Re: Daily Telegraph article 1950s TV on digital

I bet there's an Aurora hidden somewhere
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Old 3rd Mar 2012, 2:09 pm   #14
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Default Re: Daily Telegraph article 1950s TV on digital

TV22A. perhaps the A stands for Aurora..
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Old 4th Mar 2012, 12:25 am   #15
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Default Re: Daily Telegraph article 1950s TV on digital

Brian is a long standing vintage radio and television enthusiast, with local business.

http://www.radio-memories.co.uk/hobby
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Old 15th Mar 2014, 10:23 pm   #16
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Default Re: Daily Telegraph article 1950s TV on digital

Could it be that hard to design a Freeview box with 405-line output?

There must be DVB-T receivers elsewhere in the world which can output VHF, positive vision and AM sound while I've had a UK Freeview box which could output 525-lines NTSC as well as PAL 625.
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Old 16th Mar 2014, 5:27 am   #17
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Default Re: Daily Telegraph article 1950s TV on digital

Reality check: Romantic as it may be, 405 lines was an obscure broadcast standard, in use in only a very small part of the world, and it outlived its usefulness long ago. Manufacturers probably have better uses for the few bytes of flash memory; the on-screen menu "real estate"; the calls to the helpline from customers who managed accidentally to select a mode which their TV could not resolve and -- most importantly -- the hours of development work it would take up, to provide an option for a standard which suited only a handful of surviving receivers. Especially when everyone who has a working 405-line TV set must necessarily already have some sort of standards converter, in order for it to be any use at all.
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Old 17th Mar 2014, 1:03 am   #18
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Default Re: Daily Telegraph article 1950s TV on digital

Quote:
Originally Posted by ntscuser View Post
There must be DVB-T receivers elsewhere in the world which can output VHF, positive vision and AM sound while I've had a UK Freeview box which could output 525-lines NTSC as well as PAL 625.
Why? There are no broadcast transmitters anywhere in the world that use AM sound or +ve vision modulation. The last ones were turned off with French DSO. Most DVB-T boxes don't even feature a modulator.
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Old 17th Mar 2014, 4:07 am   #19
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Default Re: Daily Telegraph article 1950s TV on digital

No, but they did before DSO and so for any box to be compatible with legacy TV sets it has to have those features. I'm thinking of Belgium in particular which used a mixture of positive/negative, AM and FM modulation.

Quote:
Originally Posted by winston_1 View Post
Most DVB-T boxes don't even feature a modulator.
Almost all have composite video output though.
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Old 17th Mar 2014, 4:38 am   #20
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Default Re: Daily Telegraph article 1950s TV on digital

Quote:
Originally Posted by ajs_derby View Post
Manufacturers probably have better uses for the few bytes of flash memory; the on-screen menu "real estate"; the calls to the helpline from customers who managed accidentally to select a mode which their TV could not resolve and -- most importantly -- the hours of development work it would take up, to provide an option for a standard which suited only a handful of surviving receivers.
Somebody at Alba thought it was worth including an option for the even smaller number of people in the UK with NTSC-only receivers!

I only ever used it once myself, to check that was indeed a genuine 525-line/60Hz 3.58MHz NTSC colour signal.
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