[dconant]

Hello, I have a Philco 91 where the tuning condenser fins are rusty. I magnet sticks to them so they can't be aluminium. What would be the best way to get the rust off and preserve them from rusting again. It is just surface rust. The chassis has surface rust as well so I figured I would use naval jelly on that.

Thank you,
Dan

[RodB]

You could soak the fins in vinegar. You have to be careful if any pot metal is involved because the vinegar will dissolve the pot metal.

[RossH]

I would try Naval Jelly and use a soaked pipe cleaner to get it where it needs to go.

[dconant]

Thanks guys. I think I'll give the Naval Jelly a try since I can better control where it goes.

[morzh]

If you have rust between the vanes, I wonder how you get the NJ in between, and how you then wipe it off.

[David]

Give the tuner a good wash in Dawn and hot water. Then set tuner in a plastic container and cover with vinegar let soak until rust is gone may need to have a old tooth brush handy. Then mix baking soda and water together lots of baking soda. Place tuner in solution for 10 minutes and then rinse and dry. hair dryer works wonders. Spray with something of your choice to prevent rerusting. Like WD 40 or a clear coat.