In an earlier contribution to this discussion,
Grunff wrote:

Set Square wrote:

It sounds as if the transformer is overloaded.

Excuse my ignorance, but how does it sound that way?

Because the OP wrote, and I quote "its usually the transformer that goes"!

How and why would
an overloaded transformer blow bulbs??

It wouldn't - but it's not (usually) the bulbs which are failing.

--
Cheers,
Set Square
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