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FERNSEH · 31st Oct 2015, 11:02 am

News flash! Smell of burning. The EHT transformer has failed. That's the reason why the picture has become dim, so it's likely the CRT is OK. The transformer windings are very hot. It's possibly the original or an EMI service replacement which was fitted some time in the fifties.
I will have the transformer rewound but for the sake of long term reliability I'm thinking about another method of generating the 5KV EHT in these receivers.
Something that can be hidden inside the EHT transformer box.

DFWB.

31st Oct 2015, 11:02 am	#19
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: HMV 901 restoration. News flash! Smell of burning. The EHT transformer has failed. That's the reason why the picture has become dim, so it's likely the CRT is OK. The transformer windings are very hot. It's possibly the original or an EMI service replacement which was fitted some time in the fifties. I will have the transformer rewound but for the sake of long term reliability I'm thinking about another method of generating the 5KV EHT in these receivers. Something that can be hidden inside the EHT transformer box. DFWB.