Tripler replacement how-to

[TinCanAlley]

Is there somewhere I can look for information on replacing a tripler? I've only done one before and it was a direct plug-in replacement. This one has posts (they look like nails) sticking up a 1/2 inch and I'm assuming I solder on the leads to them? I pretty much figured out what each connection is, but the current tripler has black stuff on each lead connection and I'm not sure what that is and it's probably necessary to insulate the new connections.

So I need to know if I solder the leads, what is that black goop, and do I put something in the suction cup before pressing in?

Thanks!