I need a xformer that gives me about 12v output with a centertap. I need to drive a 7809 and a 7909, and I want like 1 amp from each of the rails.
Problem is that I can't seem to find any transformers that fits this at the sites of the usual suspects (mouser, reichelt etc.) Elfa.se I don't even bother checking cause they are so shit expensive that I buy as little as possible from them, and they are slow.
If I were to use a dual output transformer and wire it so that I have a centertap - I mean - wire L on one output to N on the other, and there's my center tap.
If I wanted 12v output with centertap, am I correct that I should use a dual 6v on the secondary side, or should I still use dual 12v ?
Sorry my stupid question, but certain things I seem to have trouble with finding out myself...
My stupidity haunts me. I found this site:
Can someone verify for me that if I wire the two secondary outputs in parallel, the voltage I get from it is still 12v and twice the current capacity?
That is, if I want a 12V secondary with centertap and 2 amp, I can use a 12v dual secondary xformer @ 1amp each output?
Thanks for the help.
Edited by technobreath, 11 April 2012 - 16:15.