[morzh]

Rod

Indeed, copper and aluminum do form a galvanic couple, whicb some consider the worst.
However that requires some moisture, and in well-controlled climate this should not be much of a problem.


Arran

Yes, and I did that once before, forgot in which radio from those I restored. That was early on. I just wanted to keep wires from sticking out from the can.

Another way would be using two wires out of the cap, as in some Philcos. I probably could've gone for that too.

The small cap was somewhat inconvenient. If you cut close to the base, you can't tork it when handling, plus it will be obvious; if high, it looks nicer (if really diligent, it could look very nice), but the aspect ratio interferes with handling the cap inside easily.

As for the flux, yes there are tinning fluxes for aluminum. They even claim those are not very corrosive.
Thinking of it, the flux has to get rid of Al2O3, which is corundum.....
I am not sure I want to deal with chemicals like that; the contents of the electrolytic caps of unknown composition are enough for me at this point.

I thought of alignment tonight, but it will take a bit of time, and today is a heat wave, and I want to jump in the pool, and then I need to call mom.

Maybe Friday.