@DaveXRQ,
I managed to get the badly corroded terminal off using tweezers and I'm glad I did as you can see from the pictures (next post). The backside was in far worse shape.
@siliconmix,
Thanks for the comment.
@mikeselectricstuff,
I ended using a toothbrush to help scrub the contacts, but has you mentioned, I cannot get it completely clean.
@saturation,
Thanks for the hint about deoxit.
@Excavatoree,
Your suggestions are always welcome regardless if they are on topic or not.
I can't believe how much the replacement parts cost. I didn't see it in the service manual so I didn't know such parts existed.
a-fluke which seems to be the only seller of these parts doesn't ship outside the USA and has his ebay account doesn't even accept "contact seller" from non USA members.
http://www.ebay.com/itm/370609154201@WorldPowerLabs,
My first choice would be to replace the one really bad one, but a-fluke won't ship outside USA. I may search digikey for "compatible" ones.
@MikeK
I have both CLR and Lime-Away at home. I don't know if they are more harmful or helpful in the long run. While I took basic Chemistry back in high school, it was a LONG LONG time ago.
PS. I have a new respect for people like tekfan who restore all the old equipment and how much of an art + science it takes to get damaged gear to fully working condition.