I have a small Block FL4/12 transformer laying around for which I expected the output to be 12V RMS on secondary side but I'm measuring different values. It is a dual winding transformer on primary as well as secondary side with ratings 115V for each winding primary side and 12V for each winding secondary side.
If I connect the primary side in series and put 230V mains across the combined windings I expected 24V secondary when put in series and 12V secondary when windings are put in parallel. However I measure 34,60V when in series and 17,3V when in parallel. Does that make sense or did they put the wrong text on the transformer block?
Thanks for shedding some light on the matter.
Jochen
If I connect the primary side in series and put 230V mains across the combined windings I expected 24V secondary when put in series and 12V secondary when windings are put in parallel. However I measure 34,60V when in series and 17,3V when in parallel. Does that make sense or did they put the wrong text on the transformer block?
Thanks for shedding some light on the matter.
Jochen