[sdiy] replacing a transformer, was:Re: (no subject)

Ingo Debus igg.debus at gmail.com
Mon Mar 6 18:06:56 CET 2017


> Am 06.03.2017 um 14:00 schrieb Roman Sowa <modular at go2.pl>:
> 
>> 
>> Is there any harm in using the centre tap for the 6.3V and the end taps
>> for the 12.6V supply to the PSU? It means the coil between one end and
>> centre tap gets a little more loading than the other side. The same
> 
> No problem at all, just make sure that added load from 6V and 12V circuits doesn't exceed current rating for that winding.

Careful. This won’t work if the two secondary windings of the original transformer are isolated from each other, and they are feeding two bridge rectifiers, and on the DC side of the bridge rectifiers the grounds are connected.

With two half-wave rectifiers there’ll be no problem however.

Ingo



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