Cleaning tube pins


Anyone have any suggestions for cleaning gold plated tube pins on NOS tubes. I have heard that Caig's is not the answer. Plus, I do not want to take the chance of removing the gold plating.
128x128daveyf

I had the dremel out for another project but just polished some NOS pins with the polishing bit (felt) and some compound. I can reach the outside but to get the insides, I'd have to trim felt and put some time into this. Will there be a reward for such activity? The outsides went from really tarnished to original surface. It's a contact surface I'd say small gain??

I didn't notice any difference but my room is not perfect and my ears are 48 so YMMV.

A friend brought his Bel Canto SET amp over one time. Before playing we removed the tubes and I coated the tube pins with [redacted]. We applied [redacted] before listening to it here. So he had not heard it in my system and had no idea what if any difference it made.

Next day he called me up. When he hooked the amp back up in his system he couldn't believe how much better it sounded. Why? Then he remembered [redacted].

This was just the tube pins. Didn't do terminals, IEC, fuse holder. 

Whatever process Andy of VTS uses - those are the cleanest non-gold-plated NOS tube pins I've ever seen. The dull gold plated pin tubes (e.g. premium 6922) seem to stay a lot cleaner over time. 

I've heard of folks using CLR (carefully), but haven't tried it myself.