For what it is worth, I removed the "warning" / "caution" lines from my post....
no, I have nothing to do with feather. just tested it's resistance. if it does not conduct good it will not lead to degradation of the base metal.
For what it is worth, I removed the "warning" / "caution" lines from my post....
So, are all vintage Gillette razors all solid brass?
Most are, to my knowledge. Some of the Techs are Zamak (it may only be the top cap, though, and not the base plate). I have a '51 Tech, and the top cap is definitely zinc-alloy. Some of the nickel plating is gone on the threads, and the gray, rough, zinc-alloy is clearly visible. I read that the way to tell on the Techs is by the weight of the top cap (the brass and copper ones are heavier than the zinc-alloy).