At 09:26 AM 11/4/02 -0600, techhead wrote: >I have a transformer rated at 220 VAC primary, 24 VAC secondary @ 750 >VA. I am looking for 12 VAC out so I will connect the 220 primary to 110 >VAC and get the 12 output. I think I know the answer to this but wish to >avail myself of the experience and knowledge of others. I don't see >problems but was concerned with noise, heating, life expectancy etc. of >doing this. The VA rating will decrease in direct proportion to the reduction in input voltage. As long as this is not a problem, go right ahead and use it. Lets work some numbers. 24 Vac @ 750 VA is 31.25 Amps. Output current is limited by wire size, so it can't change. If you change the primary voltage such that you now have only 12 Vac at the output, max output current is still 31.25 A which is 375 VA. dwayne -- Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 18 years of Engineering Innovation (1984 - 2002) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics