Tweed Champ (5F1) in Europe?

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So you have two choices if you wire it incorrectly: 1. switch the primary wires (blue & red) or switch the secondary wires (don't know what color you have but the US standard is black and green.) It might be easier to switch the output (secondary wires) since they are on the jack.

Yes, the secondary wires are green and black. I've mentioned them in my previous post (wired: green to speaker jack tip, black to ground), but I've obviously got a lot more to learn (about tube amp terminology and technology) and English is not my first language, so I guess sometimes I'm not as clear as I could be - sorry.

If you want to be sure, email TAD and ask them what the correct color coding is.

I did already email TAD, but they won't answer until Monday probably. But you've made the correspondence between the primary and secondary wires pretty clear, so if I had to get it done quickly it wouldn't be much of a gamble. As it stands, I have to wait anyway for a new batch of resistors I've ordered to replace the ones in the kit that changed resistivity more than what the tolerance band spec'd - so hurying to solder the output transformer wires won't make much of a difference with regard to the power-on day. I'm just trying to ask questions and learn as much as possible.

Thank you, I really appreciate your help! If you ever write a book about tube amps, autograph the first copy for me and let me know where to send the money.