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Old 27th Dec 2016, 10:34 pm   #135
indigo.girl
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Join Date: Apr 2016
Location: Loughborough, Leicestershire, UK.
Posts: 754
Default Re: My first valve radio project - Philips 462A

Quote:
Originally Posted by ms660 View Post
Before you condemn the transformer do a resistance check between the transformers HT winding centre tap tag and chassis, it should measure approx 101 ohms, also measure the resistance across the total HT winding (the other two tags of that winding) and also between the centre tap tag and both of the other two tags of that winding in turn. Power off of course.
I've measured all the resistances between the tags and have labelled up the diagram found in the manufacturers service sheet. The voltage disc was set to 245V. The resistance between all the windings between the mains input is about 45 ohms.

I can't measure any continuity between any tag and the chassis (all infinite resistance.
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