On Mon, Mar 8, 2021 at 09:12 PM, stevenhorii wrote:
I don't know when they started making beryllium oxide parts pink, but the
manufacturers did.
I don't either, but I think I've read about it somewhere in the past. I've seen pink and purplish insulators on microwave oven magnetrons, going quite a way back, but never knew for sure if that was the deal or not. I don't mess with them, just in case. I've noticed that some newer (last twenty years maybe) semiconductors and other components are marked with BeO warning right on the package. I would always be suspicious whenever encountering unknown ceramic substrates and insulators in old electronic gear.
Ed
