Use of Screen Tap on single-ended output transformer

[Resonator Guy]

I was recently given a Triode OT for a Champ build that has a White primary tap that is a screen tap. I have never used one of these before and am wondering if the OT will work with this taped off or must it be connected to the screen of a 6V6?
A tyro question, I am sure, but I can't seem to find the answer.
Thanks.

[Mick Bailey]

Screen taps on an SE OT are usually found on hi-fi transformers. Do you have the model number? For a champ build you would ignore the tapping so long as your transformer is close enough in all other respects.

Hammond refers to the tapping as "for optional use".

[Resonator Guy]

Mick, the model number is TF103-48ULH. By ignoring the tap, just tape it off?

[Mick Bailey]

I took a look at the spec and it's use is optional. For a standard Champ, ignore it. I like to make sure that any unused taps on a transformer are secure. Regular tape can come off - the adhesive oozes. I snip off any exposed bare wire, double the wire back for about an inch and heat-shrink over the loop. If I have it to hand, I use adhesive lined. Then tie wrap it out of the way. If you leave the wire full-length it can always be reinstated if you want to do something different in the future.

I have made amps with a switch to select between a standard screen supply, or the tap. Usually they get left in the standard position.

[Resonator Guy]

Thanks Mick. Its always nice when I can ignore something.