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  13V ~ port on 12V transformer
 
My question is what is it for? My dad says it is the first change after the step-down from 240V (Europeans who use 220V transformers have a 12V ac port). The other 2 ports on the tranformer have a use - one for accessories, one for control of the (...) (25 years ago, 22-Aug-99, to lugnet.trains)
 
  Re: 13V ~ port on 12V transformer
 
(...) who (...) tranformer (...) Your dad is correct. I'm not exactly sure why that port is provided except for testing or troubleshooting the transformer. 13V is also true of transformers here in the States. I've heard that 13V is used because (...) (25 years ago, 23-Aug-99, to lugnet.trains)
 
  Re: 13V ~ port on 12V transformer
 
This means, that now when we have 230V in Europe (European Union standard as it is between 220 and 240V and whitin the limits), that it will be app 5% more ~almost 14V. I have never checkid it, but the 741 (740, 742) is only a transformer basically (...) (25 years ago, 23-Aug-99, to lugnet.trains)
 
  Re: 13V ~ port on 12V transformer
 
(...) Well we are still running at 240V (officially 230V) using the 15% upper limit. (...) Possibly, the transformer to get from 230V to 13V and the diodes for the rectification for DC. (25 years ago, 23-Aug-99, to lugnet.trains)

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