This is what that wire is. It is pure copper wire
it’s the type of wire that the manufacturers use for wiring appliances and so forth
Appliance Wiring Material (AWM) consists of stranded, soft annealed copper conductors insulated with Polyvinylchloride (PVC). Constructions may be solid or stranded and are available in 1000 V (1kV) ratings. Canadian Standards Association (CSA) listed AWM-IA (Class I Group A) and TEW products are 600 V FT-1 rated.
it’s the type of wire that the manufacturers use for wiring appliances and so forth
Appliance Wiring Material (AWM) consists of stranded, soft annealed copper conductors insulated with Polyvinylchloride (PVC). Constructions may be solid or stranded and are available in 1000 V (1kV) ratings. Canadian Standards Association (CSA) listed AWM-IA (Class I Group A) and TEW products are 600 V FT-1 rated.
From what I read, tinned wire can be less corrosive. I can see how it would be a good fit for appliances. I guess it may be easier to solder.
1987 - it wasn't such tiny thin alum. wires in that times, as I know. So it must be pure copper (tinned here).