I ordered the Craig Deoxit D5 from Amazon, and a brand new set of standard JJ Tubes, just because the tubes have to be 4 to 5 years old, and I use the amp almost every day, so it is time.
It is Caig, not Craig, no?
Either way, it is legendary stuff and you can't go wrong.
I'll share a tip about tips! I was trying to reach to open service vent in the pots on a Peavey amp with the pots mounted to the circuit board. That is a difficult spot!!!
So I cut about 1/2" of the stiff red spray tube off the end (use a sharp knife and make a clean cut, do not crush the tube). Then I used heatshrink tubing to add a flexible section. I bent a short piece of G string, taped it firmly to the straight part first and then made a curve of the end of the tube and taped that end.
This gave me a curved extension. I could set the amp chassis in a cupboard above the kitchen counter, put a towel underneath it and a light and maneuver the tip in above the access slot in the pot. It works great, I've cured 4 or 5 old scratchy amps with that and have one in waiting.
Tube sockets can usually be cleaned by inserting and removing a new tube several times. You will want the non-lubrication Caig De-Oxit for cleaning tube sockets and jacks, not the one you use for cleaning pots.