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COSSOR 900

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Front view of The Beast [26K]
  • 1946
  • Single channel T.R.F.
  • 15" Weapon of Mass Destruction
  • 3-band radio
  • 15 valves, plus 4 in the radio.
  • 3-band radio
  • A.C. Mains
  • Original cost unknown.
NOTES
Next to a D18 console for scale [7K] [Homer] Mmmm, Scrummm pyyyy Jaaaack [6K]

From the photo you'd be forgiven for thinking this was just another average sized console set. However it is difficult to describe just what a monster this thing is; it may not be quite as tall as my fridge-freezer but it is certainly as wide and definately deeper ! The pictures opposite will hopefully give some scale to it - note that the CRT sticks out the back by half a foot (152.4mm in new fangled units).

If, like me, you have a bit of a CRT phobia then this is one set I would recommend you avoid ! 15" CRT's were leading edge stuff at the time, and so delicate even Cossor saw fit to wrap them in a protective sock in case for when they imploded. Just in case a bit of help were needed, the radio chassis is held convieniently above the neck/bulb join of the CRT, held with the minimum of screws.

The design is split into three chassis. The upper chassis is a radio chassis covering LW, MW and SW, below which is the main television chassis. Finally, buried in the bottom, is the PSU chassis which is also home to the audio output valve (a directly heated triode) that is shared between the TV and radio chassis's.

As well as being the largest direct-view CRT, other notable features are the superhet vision receiver and white-spotter interference limiter, all way ahead of the basic girlie little TRFs that were typical of other manufacturer's pre-war sets.

SERVICE DATA Yes thanks - you can download it on the Cossor manufacturer's page.

Interestingly, Cossor recognised that removal of the radio chassis, which is mounted right above the CRT, would be fraught with danger and the manual recommends removal of the CRT before attempting to remove the radio, with a footnote "many service engineers will prefer to leave the tube in position, and take due care not to drop any of the chassis fixings on it". The fixings !? Be afraid ... be very afraid 8-o
CURRENT STATE Pretty much untouched. However one of the valves in the radio looks particularly new and the set came with it's original mains lead fitted with a modern 13-amp plug. Er ...
WHERE
FOUND
Bought privately for £3K [que sounds of jaws hitting floors]. This is a pre-war set price, but seems I've been mugged with a post war set.
Main view of rear of cabinet [18K] Radio chassis [11K] I can't look, I'm too scared [19K]
Power supply chassis [11K]


All images copyright
J.Evans 2004
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Last updated
5th December 2004