I had similar problems with my vintage integrated amp.... I used the Radio Shack stuff - but I wouldn't again. It's content is heavy on the lube, and light on the cleaner. For some things, like pots and switches and buttons, it might be fine in small doses, since the lube will help there - but you will still want a "pure" cleaner to get it clean first.

I guess my point is - count yourself lucky that they don't carry it... it's really not worth it.