THE GREAT MULLARD MAGIC BLOG — anode

After a little diversion, let's get back on track looking at the inside of valves, today we'll look at the ANODE. A valve anode typically is shaped as a hollow open topped cylinder, which surrounds a central cathode and any other electrodes. Although the cylindrical type is most commonly encountered due to it’s efficiency in both electron capture and heat dissipation, oval or flat pates may also be used. The anode’s purpose is to receive the electrons emitted from the cathode. This happens because the anode has a positive applied potential, which attracts the negatively charged electrons. Indeed, often the...