MKIV power supply - mysterious yellow cables.

[Golden1984]

Hello.
I found two not connected and isolated yellow cables (one is yellow, another yellow-white) going out from my transformer in Mesa MK IV B. They are visible on this picture:

I`m curious if they may be used to switch the amp for 230 volt. It is wired for 117 volts now. Anyone knows anything about it?

Thanks, Peter

 

[etepbbb]

While not sure exactly what the wires are for. I can tell you with certainty that they are taps or connections that aren't needed. They may be connections for 220v, more likely there just different voltage taps that Mesa doesn't use. Not a lot of help, but Xformers are build with different configurations to make them more multipurpose- one parts cover lots of applications.