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In Reply to: Cobalt rewire 240 V to 120 V posted by valvesonly on March 14, 2007 at 22:09:28:
Typically transformers with 120/240 taps have two 120 volt primary windings. When used with 120 volt power the two windings are connected in parallel. When used with 240 volt power the two windings are connected in series.Typical connection might look like this:
L1_______________1_ ||
| )||
| )||
| ______2_)||
120V | | ||
|_|______3_ ||
| )||
| )||
L2________|______4_)||
||
L1_______________1_ ||
)||
)||
______2_)||
240V | ||
|______3_ ||
)||
)||
L2_______________4_)||
||
Follow Ups:
Well this did not work. All the spaces were stripped out. Dang HTML anyhow.
Go here to look at a bmp file that might help.
I think my knowledge isn't good enough to interpret the diagram but it seems to indicate that connecting both 120 jumpers will be correct? If I just had a look inside a 120 wired copy I would be good. Miminc like a parrot.
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