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I have been collecting for the last few years and am finally getting serious about building my larger layout. I have collected 3 transformers and am rewiring them now in preparation. The RW(110 watts) has always had a low hum and I have used it lightly over the last few years. The 1033(90) is quiet as a church mouse and the KW(190) has a pronounced hum.
I have never used the large ones before. Do I need to be concerned with the mum or it it normal for them? Seems the hum decreases slightly when they have a little load.
Appreciate any comments will be appreciated.
I have never used the large ones before. Do I need to be concerned with the mum or it it normal for them? Seems the hum decreases slightly when they have a little load.
Appreciate any comments will be appreciated.