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Techman · 3rd Jun 2020, 1:19 am

The transformer may not be burnt out. You say you had valve heaters, so it could well be a short on the HT line somewhere. Disconnect the supply from the transformer to the rectifier and see what happens.

3rd Jun 2020, 1:19 am	#10
Techman Dekatron Join Date: Nov 2009 Location: Lincolnshire, UK. Posts: 5,000	Re: Grundig 3086 The transformer may not be burnt out. You say you had valve heaters, so it could well be a short on the HT line somewhere. Disconnect the supply from the transformer to the rectifier and see what happens.