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Old 3rd Dec 2018, 10:54 pm   #1
FERNSEH
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Default Baird T5 restoration project.

As you can see from the pictures this Baird T5 TV set has a problem with the cabinet. Woodworm! In fact I reckon the cabinet is in a worse state than the HMV 900 that appeared on this Forum back in 2011.
The two power supply assemblies were removed today only to discover that the cabinet floor is completely rotten and it's likely so is the shelf that supports the timebase chassis and the separate vision and sound receivers.

It's going to be a complete cabinet rebuild.

Note the "Televisor" emblem instead of the usual Baird brand name. There is a small label inside the cabinet informing us that the set was made by Bush Radio Ltd.

DFWB.
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Old 3rd Dec 2018, 11:37 pm   #2
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Default Re: Baird T5 retoration project.

Now that's what I call a winter project David, lets hope the electronics are in better shape than the cabinet!

I am sure that I read somewhere that Baird sets of this era were built by Bush.

Mark
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Old 4th Dec 2018, 2:17 am   #3
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Default Re: Baird T5 retoration project.

Hi Mark,
Here's the evidence that the set was made by Bush Radio.
The CRT was made by Baird Television Ltd, Cathodevisor type 15MW1

DFWB.
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Old 4th Dec 2018, 8:11 am   #4
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Default Re: Baird T5 retoration project.

That's a very interesting set David.
I'm going to follow this restoration!

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Old 4th Dec 2018, 9:20 am   #5
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Default Re: Baird T5 retoration project.

More evidence of it being built by Bush is seen in the chassis construction quality. it had certainly gone down hill in post war Baird sets, my T164 is proof of that

I would dearly love to have a prewar set to restore, but sadly well out of my budget!

I look forward to following your progress with this rare beast.

Mark
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Old 4th Dec 2018, 10:12 am   #6
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Default Re: Baird T5 retoration project.

Those connectors to the power supply look almost identical to the ones employed in the Bush T91/TV1/2 models of 1947/48.

A massive undertaking David. I would guess that most of the cabinet is infested. The power supply is usually reliable with a very well made EHT transformer.

Realistically about a years work given time off to recover. Regards, John.
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Old 4th Dec 2018, 10:55 am   #7
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Default Re: Baird T5 retoration project.

Mein Gott! (As they say in Blaydon .....).

You do 'dig 'em up David !!!!
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Old 4th Dec 2018, 11:02 am   #8
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Default Re: Baird T5 retoration project.

Great stuff! Wasn't this set the subject of a thread entitled "Baird T5 garage find", back at the beginning of July?
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Old 4th Dec 2018, 11:33 am   #9
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Default Re: Baird T5 retoration project.

Here's the link:

https://www.vintage-radio.net/forum/...d.php?t=147823

DFWB.
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Old 4th Dec 2018, 1:40 pm   #10
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Default Re: Baird T5 retoration project.

Is the Dual-Standard switch still fitted?
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Old 4th Dec 2018, 1:49 pm   #11
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Default Re: Baird T5 retoration project.

No one can say you don't like a challenge! Good luck with it, I'll be following this thread with interest.

How do these early Baird CRT's hold up?

Regards,
John Joe.
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Old 4th Dec 2018, 2:37 pm   #12
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Default Re: Baird T5 retoration project.

From Television and Short Wave News. A prototype Baird T5.

DFWB.
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Old 4th Dec 2018, 3:24 pm   #13
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Default Re: Baird T5 retoration project.

Hi David,
I'm glad you have been able to get the chance to restore this set.
I was tempted to have a go, but I don't have your cabinet skills. Also renting a very small Edwardian house with hardwood flooring and no external storage really puts me off anything with woodworm at the moment.

I look forward to seeing how you get on with it.

Hi Jon Joe,
The Baird tubes seem to have had a fairly short working life, but I can tell you that having restored a T5 with a good CRT that they are capable of really excellent pictures.

Cheers
Andy
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Old 4th Dec 2018, 4:22 pm   #14
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Default Re: Baird T5 retoration project.

Quote:
The Baird tubes seem to have had a fairly short working life, but I can tell you that having restored a T5 with a good CRT that they are capable of really excellent pictures.
I'll second that. There was a working T5 at the Science Museum Exhibition (re. Gordon Bussey) in 1980, and the picture was bright and sharp... the picture looked big for a pre-war set too.


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Old 4th Dec 2018, 5:17 pm   #15
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Default Re: Baird T5 retoration project.

That's right a 15" CRT in a pre-war TV was a really big screen, typically 10 X 8 inches. Didn't Baird Television Ltd make a speciality of making really large CRTs? Isn't there a story about 22" round tube being made.

The Cathodevisior tubes fitted in the T5 had directly heated cathodes which means the video drive must be supplied to the grid or as it was called then, the Wehnelt electrode.

DFWB.
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Old 4th Dec 2018, 5:31 pm   #16
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Default Re: Baird T5 retoration project.

I'm really looking forward to this restoration too.

Peter.
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Old 4th Dec 2018, 6:58 pm   #17
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Default Re: Baird T5 retoration project.

David takes these rotten wrecks in his stride. Think of it as a little puppy with wagging tale that you dragged out of the river when only 100 yards from the weir.

John Joe, Its not really a case of holding them up, more a case of don't let go. If I discover bits of a 15MW-1 on my grass I will know David did in fact let go. Regards, John.
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Old 4th Dec 2018, 9:01 pm   #18
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Default Re: Baird T5 retoration project.

My word, this really be a project and a half (which I shall follow with great interest.
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Old 4th Dec 2018, 9:12 pm   #19
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Default Re: Baird T5 retoration project.

Thanks Beery for recommending Dave,He certainly knows his stuff.
We are certainly looking forward to following the restoration on the forum and seeing the end result.
After reading the comments on the original post”Baird T5 garage find”, I feel privileged to own this important piece of history. Thanks for your commitment Dave.

Ant
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Old 4th Dec 2018, 9:37 pm   #20
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Default Re: Baird T5 retoration project.

Hi Ant, About 80 per cent of the cabinet will need renewing and to do the job properly the correct materials will have to be found. The cabinet floor and shelf require furniture quality 15mm plywood. The cabinet sides and front panel use much thinner plywood. The cabinet mirror lid can be saved but will need re-veneering. Strange some wood parts have not been attacked by the woodworm.

DFWB.
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