Hi Alan
I use Electrolube Contact Lubricant which is both a cleaner and lubricator
but apply it sparingly.
My last tin of freezer spray was an own branded RS Components product and
not sure if they have a presence in USA.
However, most of my electronic and service parts come from a UK company
called Farnell Electronic Components and I understand that they have a USA
outlet called Newark. They are a commercial company that take credit card
orders via the phone or internet from private individuals and have a wide
range of products and good prices, particularly if you buy at or above the first
quantity break for semiconductors and small components. The UK end has a
technical department but they are not geared up to deal with ham radio issues.
Having said that I have used them for many years with no complaints. They are
BS/ISO 9000 registered so everything that they handle is traceable unlike some
"amateur" businesses.
I have no financial interest in this company - just like their good
service.