whatever i do it doesn't save the output when I press E

Is there an arcane secret here?

potentially sounds like a mod conflict, could you send me a save as well as a recording of what you're doing?

I have no idea. Here's a save. I prepares some tests trying to understand it but I'm baffled
https://we.tl/t-hBh3KwbZel

I don't know how to make a vid out of this. But with the example you should have an idea of what I mean.
Sorry about the ridiculous amount of mods to download. I like testing them

ah, i think what you've tried to do is set an output, that doesn't work.

try setting "iron gear wheel = iron stick" on the left side.

Nope, exactly the same thing.
The output panel (right) won't get saved.
The final signal is whatever was the input if it does not meet the condition, and nothing for thing that do meet the condition.
moreover, the condition comparison (= <> ) would reverse to =
It's acting like a filter.

pictures showing the steps
https://imgur.com/a/MiCkoBN

do not put anything in the right column, put the gear where the 0 is on the left side.

ooooooh
You should put that on the mod's description 😜

and input on the left which signal to transmute and into what

the description already did