Power Trans with or without CT

[trem]

I did a search...maybe I missed it, because I am sure this has been asked several times. But...in my own defense, when you search a word like (in my case) "transformer" the results can be me overwhelming, and hard to sift through.
With that said ...
.....on a Fender Twin reissue...with a bad PT...can you take a PT made for a BF/SF Twin and just use the CT and one winding.?
The BF/SF had a secondary that used a CT into a full wave rectifier.
The reissue has no CT into a bridge rectifier.
Assuming the voltage is reasonably close...can I do that...just use the CT and one half of the secondary for the rectified B+ .?
You guys know what I am trying to say.....
Thank You

[loudthud]

Using the full wave bridge will reduce the current capability of the winding. The current rating of the high voltage transformer with a CT usually assumes the full wave CT rectifier arrangement and that only half the current will flow on each side. The wire size is chosen accordingly. Transformer manufacturers almost always dumb down the specifications and don't disclose the true engineering data. An example is the current rating of a high voltage winding is given as DC current, not the actual RMS capability of the winding.

Edit:

will reduce the current capability of the winding.

That didn't come out the way I intended. The current capability of the winding doesn't change but the current available at the output of the bridge rectifier circuit will only be half that of the full wave center tap configuration when the transformer is operated within it's rating. Or in other words, the bridge rectifier will work for a short time and then the transformer will be toast.

[J M Fahey]

No.
The single winding works 100% of the time and is thicker; on the centertapped one each half works 50% of the time and is wound with thinner wire.
Which like it or not is needed, or it won't fit in the available lamination window.

So get the proper one.

[trem]

Thanks for the info.
Much Appreciated.?

[GainFreak]

So let's summarize:

Get a non CT PT where the single winding has full current capability (~250-300mA for 50W and ~400-500mA for 100W), use a bridge rectifier and forget about bulky CT transformers (unless you have a tube rectifier - only then a CT PT makes sense).