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Old 17th Oct 2019, 7:07 pm   #22
Sideband
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Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,550
Default Re: Bush AC11 - Newbie Project

Don't worry too much about mains transformer (or any transformer for that matter) DC resistances. The values given are only a guide but if you think about it, you only need one turn to go short circuit and it wouldn't make any difference to the reading you get BUT the transformer would not work....it would overheat rapidly and probably fail spectacularly if not disconnected pretty quickly. If the radio is working, the transformer is OK. Replacing the leaky old waxies will reduce HT current possibly by quite a few milliamps and will certainly help to prolong the life of the mains and output transformers.

If the DC reading is wildly out then obviously that would be cause for concern but 10 or even 20 ohms or more doesn't mean there is a fault.
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