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PYE 9 inch 1946 Television

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Uploaded on Mar 30, 2009

This is a 1946 television receiver produced by the British company PYE RADIO who were based at Cambridge. It was the first receiver produced after WW2 and the first models were released in time for the televising of the Victory Parade in London. I obtained the set from an elderly lady who had intended to buy a television in 1940 but had been prevented from doing so by conditions beyond her control. It was one of her first purchases after the war. She never parted with anything and when I delivered her first colour receiver in 1978, discovered this at the back of her very large living room together with two later receivers purchased in 1956 and 1966!
The receiver is a TRF, fixed tuned to the old Alexandra Palace transmitter opened in November 1936.
The vision frequency was 45mc/s, sound 41.5mc/s. The set gives a high definition picture on its 9" circular Mullard [Philips] picture tube. Development work during the war with VHF transmissions brought huge improvements to television resulting in greater sensitivity. This allowed reception beyond the normally excepted range of around 30 miles from the transmitter. The D16T is a sensitive receiver and will operate with a very low signal input. The signals are now supplied from an AURORA standards converter, a miracle of modern technology that converts current 625 line transmissions to the old British 405 line system 'A'.
The high voltage for the final anode of the tube [EHT] is supplied from a mains transformer similar in construction to those used for neon signs. This type of receiver must be treated with great respect when working on the chassis with the mains supply connected. You must be aware of the dangers or you may not live to tell the tale.. The frame timebase scans the tube VERTICALLY of course not horizontally as I said in the video commentary. The volume control requires a clean........Shame on me!
Hope you find this interesting.

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