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Old 28th Apr 2017, 6:25 pm   #8
Radio Tech
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Join Date: Dec 2012
Location: Bocking, near Braintree, Essex, UK.
Posts: 2,068
Default Re: GEC BRT402D Receiver.

Hi folks

Found my thread again, Sorry Mods, I put it in wrong place. That said, I have started work on this receiver and yes quite a lot of the caps are tucked in awkward places to say the least. The one thing that puzzles me is why did GEC not identify all the components on the overall layouts, it would have made life easy and also on the circuit diagram the capacitors are not clearly identified as to whether they are electrolytic or not and neither are the caps themselves even where there is a capacitor on a cathode of a valve its not marked, most of the caps I am finding have a highly discoloured sleeve on and the markings have long gone so I am having to guess half the time, the 3 x 2uf smoothing caps of course have given up doing their job so therefore killing the HT voltage from the rectifier, I think if push comes to shove I should be able to replace these with at least a couple of 16uf and an 8uF provided these are at least 450v and can handle the ripple.

We will see

Ken
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