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On Tuesday, 23 May 2017 21:03:35 UTC+1, Rod Speed wrote:
Fredxxx wrote
Rod Speed wrote
Fredxxx wrote
Rod Speed wrote

You have no idea what the impedance of
the supply is with that PARTICULAR fluoro.

Most supplies are a very low impedance,

Most is irrelevant with faults.

How much power would be dissipated in a faulty 'electro' to cause a
meaningful fluctuation in voltage?

Depends on the state of the supply to the fluoro.

If the mains wiring has caught fire & is providing power
through a layer of charcoal, you might be right.

Doesnt need to do anything even remotely
like that to see the fluoros flicker with a bad cap.

reams of your **** flushed where it belongs