Corroded tube pins - need help

Hi

Just got a pair of Tung-Sol VT-231. One of the tubes has some CORRODED pins. The METAL PLATING is a bit consumed. I guess this is more problematic than simply oxidated pins - am I correct?

I read some suggestions but I am still confused. For a start, English is not my mother tongue (and this discussion tends to get a bit too technical for my English skills) plus I found many different opinions.

Some people say even toothpaste is a good solution (for corroded pins?). I am willing to try, than clean the pins with alcohol and finally use the contact enhancer that came along with my Audience Au24 cables. Is this a good procedure? Any better solution?

Thank you very much for helping,
Lisbon