Came today but missing the top metal plate! I think the one on my old transformer will work fine but still poor maplins I do have both rubber protectors.

I was hoping it would straight swap but not so sure it will I might just get away with it and a hammer ;)

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Not going to wire it up until I have an MCB, replacing the rectifier as well, going to leave the caps in place.

Think I traced the problem to a poor crimp causing the initial problems and we think my friend reconnected the bridge rectifier backwards on the output but no one can be sure.