On Sat, Nov 9, 2024 at 04:10 PM, wn4isx wrote:
Jimmy is 95, sharp as a tack, and explained how early neon bulbs like NE-2 had bare metal electrodes, starting in about 1950 manufacturers applied barium or "maybe cerium or cesium" to the electrodes to improve electron emission, lower the strike (firing voltage) and life.
?
claims they used a tiny amount of radioactive Krypton, not in the electrodes but in the envelope.
?
Andy
?
