CT stands for center tap. the output of the transformer has a tap at
the midpoint (6.3 volts nominal).

It is useful if you want to use a two diode full wave rectifier versus
a four diode bridge (in that event you would have 1/2 the voltage out
at about twice the current - forgetting peak voltages and RMS current
calculations for the time being).

Ignore the extra (usually middle) lead, but insulate it so it doesn't
short to either of the outputs or your other circuitry.

On Thu, 14 Aug 2003 10:03:27 GMT, "whynot2kegs"
wrote:


I am looking at a transformer from Mouser, part number is 41PG300. In the
Mouser catalog the specs say the secondary volts is "12.6CT". What does the
CT mean? Also, the data sheet shows 3 leads coming from the secondary. Why
would there be 3 leads rather than just 2?






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