Electroetching a recrystallized tungsten wire in 2.5 molar sodium hydroxide solution. The cathode is a hunk of highly ordered pyrolytic graphite.
I’m doing a couple of test etches. If all goes well, one will become a new emitter for Milly.
Electroetching a recrystallized tungsten wire in 2.5 molar sodium hydroxide solution. The cathode is a hunk of highly ordered pyrolytic graphite.
I’m doing a couple of test etches. If all goes well, one will become a new emitter for Milly.