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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

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Old 24th Apr 2020, 10:20 pm   #1
Panrock
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Default Mystery pre-war receiver

Briefly seen in a London club manager's office in the 1946 film "Appointment With Crime" (on Talking Pictures TV tonight) is what looks to me like a 1938/9 television set.

This has a shouldered console cabinet, a radio dial below the screen, and five knobs - three of them dark; two of them light. Maybe the light ones were the vision controls. The speaker aperture appears to be vertically crossed by (most likely) four central spars.

The radio dial looks vaguely Murphy. Otherwise I thought G.E.C or Cossor. But it is probably none of these. What is it? A Baird maybe?

Steve
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Last edited by Panrock; 24th Apr 2020 at 10:29 pm.
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Old 24th Apr 2020, 10:27 pm   #2
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Default Re: Mystery pre-war receiver

Baird T25?

https://www.radiomuseum.org/r/baird_...?language_id=2

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Old 24th Apr 2020, 10:32 pm   #3
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Default Re: Mystery pre-war receiver

This certainly looks the most likely, but the knobs and central speaker are different.
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Old 24th Apr 2020, 10:45 pm   #4
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Default Re: Mystery pre-war receiver

Quote:
Originally Posted by Panrock View Post
The radio dial looks vaguely Murphy. Otherwise I thought G.E.C or Cossor. But it is probably none of these. What is it? A Baird maybe?

Steve
I think BTL assembled the televisions with the CRTs they manufactured at the Crystal Palace Rotundra and the chassis build by Bush. The dial is the same as the lower part of that in the BA53 https://www.radiomuseum.org/r/bush_ba53.html

Peter
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Old 25th Apr 2020, 6:57 am   #5
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Default Re: Mystery pre-war receiver

If it was like the Baird T18, it would have been very sensitive to mains variations and, like all pre-war sets, very heavy. Probably a "mains aerial" too.
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Old 25th Apr 2020, 9:16 am   #6
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Default Re: Mystery pre-war receiver

The T19 is another that shows the BTL / Bush connection.
https://www.radiomuseum.org/r/bush_pb55pb_5.html

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Old 25th Apr 2020, 3:48 pm   #7
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Default Re: Mystery pre-war receiver

This set had obviously survived the London Blitz. As a footnote, it's interesting to bear in mind that, had such a set been switched on at suitable times during early 1941, the owner would have seen the signal being broadcast from Alexandra Palace to counter the German Y-Gerät bomber navigation system.

On a television set, this would presumably have looked like travelling horizontal bars on the screen. The transmitted power was gradually increased, so the bars would have become 'whiter' over a few weeks.

Any corrections welcome.

Steve
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Old 25th Apr 2020, 8:12 pm   #8
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Default Re: Mystery pre-war receiver

The 4G signals at the top end of the UHF band seem to get stronger each time I look. History repeating itself, sort of.
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Old 25th Apr 2020, 9:07 pm   #9
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Default Re: Mystery pre-war receiver

It's all smoke and mirrors. A visitor to the museum asked me how I was managing to produce old programmes on the vintage receivers.
I replied that television signals pass into the atmosphere and travel on forever. Eventually decades later they return to earth and if you knew how to pick them up and tune them in you could watch them again.
I was believed, I was not expected to be.. and it was only the threat of getting a clipped ear that I confessed to the visitor but I had to show her our RF distribution system to prove the point.. She thought it hilarious. Things never change. John.
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Old 26th Apr 2020, 12:07 am   #10
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Default Re: Mystery pre-war receiver

I bought some old reel-reel tapes to play an a machine I was renovating, and was transported back to "Half a minute past six-thirteen" on Sunday 18th Oct 1964. The day Alec Douglas-Home announced his cabinet.

https://youtu.be/t0eZY8DTcck
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Old 26th Apr 2020, 12:27 pm   #11
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Default Re: Mystery pre-war receiver

Whilst we're on the subject of pre-war receivers in the films, here are some more - some shown before. All date from 1939/40. Enjoy.

Steve
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