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Old 23rd January 2009, 01:41 AM   #1
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Unhappy Transformer question

Am I going crazy?? I have a 36 volt center transformer,. So I should had 2 18 volt ac output right?

But for some reason I measure 21 volt ac on each output?
Can some shed some light this for me, and by the way this the 3 one I have tried 2 of them were used.

Lost
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Old 23rd January 2009, 01:44 AM   #2
pooge is offline pooge  United States
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You are measuring "no load" voltage. If the transformer outputs its rated current, the voltage will drop from no load voltage. Also, your mains supply may have a higher voltage than what the transformer specifies for its rated output.
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