Hi All,

I just received a bunch of "junk"as my wife puts it, that is some old 500 sets to be cleaned and polished, hardware and a few KTU modules, specifically the 415 units (I believe for a tie line, whatever that may be).The problem is, there is things like nut shells, dust and well it looks like mousies were engaged in fine dining using one of the cards as a table. I would like to clean these, but I am hesitant to use the spray stuff from the electronics store as this is plastic from the seventies, and I do not want to melt it.

Any suggestions?

Thank you in advance,

Joe

Real comms took 200lb teletypes, hand keys, sounders, operators and cranked phones!