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Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni

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Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni Empty Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni

Message  Predicta Lun 28 Avr - 16:02

Téléviseur Teleavia Panoramic 111 de 1957 et 1958
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 46641710
Designer: Philippe Charbonneaux
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 8120_110
Dimensions : 140 cm x 63 cm x 59 cm
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni Tvfran10
C'est un modèle extraordinaire par son design réellement osé qui n'est pas sans rappeler sa cousine d'outre atlantique la Predicta. Mais le plus par rapport à cette dernière est la fluidité des ligne de sa table intégré qui contient les boutons de sons et de réglages mais également les hauts parleurs. L'écran qui n'est pas sans rappeler un extraterrestre du film la Guerre des monde est complètement orientable.
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 8120_111
Le design est quelques fois attribué à Bertroni
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 8120_112
Aujourd'hui collectionné, un exemplaire est dans la collection d'art moderne du Centre George Pompidou de Paris.
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 8120_113
J'ai personnellement un exemplaire de cette télé comme l'ami Gerald (Fomoco)  Very Happy 
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 8120_114

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 8120_115

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 8120_116

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We don't care the People Says , Rock 'n' roll is here to stay - Danny & the Juniors - 1958
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Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni Empty Re: Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni

Message  Predicta Lun 28 Avr - 16:05

Le schémas électrique
venant du site: http://antique-tv-blazianu.pagesperso-orange.fr/TVfrance.htm

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 137

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 232

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 323

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Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni Empty Re: Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni

Message  Predicta Lun 28 Avr - 16:14

site: http://www.tvhistory.tv/1957-Teleavia.htm

One of the most unusual designs to hit the television marketplace in 1957 was the "Teleavia", from France, with a large 17" or 21" swivel picture tube.  The black & white picture tube also had a tilt adjustment.
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 1957-t10

Explanation of Channel "8A" and "R", courtesy of Hervé Benoit, of Paris France:

Channel 8A was the channel used by the 819 line TV transmitter in Paris-Tour Eiffel.  This was the first 819 lines TV transmitter, started in 1949 before the VHF channeling system was defined.  The channels were defined only one or two years later, and of course the Paris transmitter was not exactly on the position of one of these new channels: it had an offset of around 1 MHz to channel 8, therefore it was named "8A".
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 1957-t11
The channels of the 819 lines system (known as CCIR system E) were 14 MHz wide, with a difference of 11.15 MHz between sound and vision carriers. Video modulation was positive and sound was AM.

In order to have 12 channels in the VHF range (band I from 41 to 68 MHz + band III from 162 to 220 MHz) despite this very big channel width, odd channels had the sound carrier above the picture carriers and even channels below the picture carrier.

So there was always an odd channel within the same spectrum of an even channel, but with an offset of around 1MHz.

This, combined with the use of horizontal and vertical polarisation, allowed the placement of more transmitters.
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 1957-t12
Regarding the explanation for "R", it probably meant "reserve".  This would have been a provision in view of adding an UHF tuner, which in the early days of UHF was done by means of a special "barette" (bar) inside the tuner (when the second national TV program was started).

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 1958-j10

French 819 line channels  

(E standard 1949-1980)  
   
Channel picture (MHz) sound (MHz)
F2           52.40           41.25
F4           65.55           54.40
F5           164.00         175.15
F6           173.40         162.25
F7           177.15         188.30
F8           186.55          175.40
F8A (1)    185.25          174.10
F9           190.30          201.45
F10          199.70         188.55
F11          203.45         214.60
F12          212.85         201.70
   
(1) channel only used in Paris and Lille France  



To be noted that there is no channel 1 nor channel 3, which originally were defined (reversed channels 2 and 4 respectively).
The reason why they were not used is that the local oscillator frequency would have fallen inside the IF spectrum of the IF values then used (vision IF = 28,05 MHz, sound IF = 39,20 MHz).  If the IF values had been chosen the other way around, then the same thing would have happened to channels 2 and 4
Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni Teleav10

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Message  Predicta Lun 28 Avr - 16:29

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 11311
Téléviseur Téléavia Panoramic à écran pivotant modèle P111, en ABS moulé et laqué ivoire et ébène. Piètement en bois laqué et caisson technique en métal laqué. Haut. : 140 - Larg. : 58 -Prof. : 60 cm.

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni Panora10

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni Teleav11

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni 1958-j11

Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni Me000010

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Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni Empty Re: Teleavia P111 - 1957 - 1958 - Philippe Charboneau - Bertroni

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