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Refugee · 1st Sep 2019, 10:51 pm

Unplug the mains lead and clip a meter probe on the neutral pin.
Then with the power switch in the on position measure the resistance to the various terminals on the transformer and find the highest one and then check that it goes to the live terminal.

1st Sep 2019, 10:51 pm	#74
Refugee Dekatron Join Date: Apr 2012 Location: Worksop, Nottinghamshire, UK. Posts: 5,554	Re: Shaftesbury 519 amplifier Unplug the mains lead and clip a meter probe on the neutral pin. Then with the power switch in the on position measure the resistance to the various terminals on the transformer and find the highest one and then check that it goes to the live terminal.